Home / 85,744.20-118,331.28-51,752.16

Finding the Fourth Proportional to 85,744.20, 118,331.28 and 51,752.16

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Solution

The fourth proportional to 85,744.20, 118,331.28 and 51,752.16 is: 71,420.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,744.20 : 118,331.28 = 51,752.16 : x
  2. Step 2: Convert to fraction form
    85,744.20/118,331.28 = 51,752.16/x
  3. Step 3: Cross multiply
    85,744.20x = 118,331.28 × 51,752.16
  4. Step 4: Simplify right side
    85,744.20x = 6,123,899,335.56
  5. Step 5: Solve for x
    x = 6,123,899,335.56/85,744.20
  6. Step 6: Final answer
    x = 71,420.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.