Home / 85,068.18-127,620.72-25,902.30

Finding the Fourth Proportional to 85,068.18, 127,620.72 and 25,902.30

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Solution

The fourth proportional to 85,068.18, 127,620.72 and 25,902.30 is: 38,859.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,068.18 : 127,620.72 = 25,902.30 : x
  2. Step 2: Convert to fraction form
    85,068.18/127,620.72 = 25,902.30/x
  3. Step 3: Cross multiply
    85,068.18x = 127,620.72 × 25,902.30
  4. Step 4: Simplify right side
    85,068.18x = 3,305,670,175.66
  5. Step 5: Solve for x
    x = 3,305,670,175.66/85,068.18
  6. Step 6: Final answer
    x = 38,859.07

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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.