Home / 89,716.50-123,801.45-51,487.74

Finding the Fourth Proportional to 89,716.50, 123,801.45 and 51,487.74

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Solution

The fourth proportional to 89,716.50, 123,801.45 and 51,487.74 is: 71,048.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,716.50 : 123,801.45 = 51,487.74 : x
  2. Step 2: Convert to fraction form
    89,716.50/123,801.45 = 51,487.74/x
  3. Step 3: Cross multiply
    89,716.50x = 123,801.45 × 51,487.74
  4. Step 4: Simplify right side
    89,716.50x = 6,374,256,869.22
  5. Step 5: Solve for x
    x = 6,374,256,869.22/89,716.50
  6. Step 6: Final answer
    x = 71,048.88

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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.