Home / 85,157.04-127,751.06-28,994.28

Finding the Fourth Proportional to 85,157.04, 127,751.06 and 28,994.28

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Solution

The fourth proportional to 85,157.04, 127,751.06 and 28,994.28 is: 43,496.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,157.04 : 127,751.06 = 28,994.28 : x
  2. Step 2: Convert to fraction form
    85,157.04/127,751.06 = 28,994.28/x
  3. Step 3: Cross multiply
    85,157.04x = 127,751.06 × 28,994.28
  4. Step 4: Simplify right side
    85,157.04x = 3,704,050,003.94
  5. Step 5: Solve for x
    x = 3,704,050,003.94/85,157.04
  6. Step 6: Final answer
    x = 43,496.70

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.