Home / 89,666.97-123,735.68-51,424.55

Finding the Fourth Proportional to 89,666.97, 123,735.68 and 51,424.55

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Solution

The fourth proportional to 89,666.97, 123,735.68 and 51,424.55 is: 70,963.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,666.97 : 123,735.68 = 51,424.55 : x
  2. Step 2: Convert to fraction form
    89,666.97/123,735.68 = 51,424.55/x
  3. Step 3: Cross multiply
    89,666.97x = 123,735.68 × 51,424.55
  4. Step 4: Simplify right side
    89,666.97x = 6,363,051,044.27
  5. Step 5: Solve for x
    x = 6,363,051,044.27/89,666.97
  6. Step 6: Final answer
    x = 70,963.15

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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.