Home / 89,732.18-123,875.25-69,543.74

Finding the Fourth Proportional to 89,732.18, 123,875.25 and 69,543.74

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Solution

The fourth proportional to 89,732.18, 123,875.25 and 69,543.74 is: 96,005.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,732.18 : 123,875.25 = 69,543.74 : x
  2. Step 2: Convert to fraction form
    89,732.18/123,875.25 = 69,543.74/x
  3. Step 3: Cross multiply
    89,732.18x = 123,875.25 × 69,543.74
  4. Step 4: Simplify right side
    89,732.18x = 8,614,748,178.44
  5. Step 5: Solve for x
    x = 8,614,748,178.44/89,732.18
  6. Step 6: Final answer
    x = 96,005.11

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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.