Home / 85,388.63-127,995.45-35,497.70

Finding the Fourth Proportional to 85,388.63, 127,995.45 and 35,497.70

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Solution

The fourth proportional to 85,388.63, 127,995.45 and 35,497.70 is: 53,210.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,388.63 : 127,995.45 = 35,497.70 : x
  2. Step 2: Convert to fraction form
    85,388.63/127,995.45 = 35,497.70/x
  3. Step 3: Cross multiply
    85,388.63x = 127,995.45 × 35,497.70
  4. Step 4: Simplify right side
    85,388.63x = 4,543,543,445.49
  5. Step 5: Solve for x
    x = 4,543,543,445.49/85,388.63
  6. Step 6: Final answer
    x = 53,210.17

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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.