Home / 89,487.75-123,444.49-55,484.76

Finding the Fourth Proportional to 89,487.75, 123,444.49 and 55,484.76

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Solution

The fourth proportional to 89,487.75, 123,444.49 and 55,484.76 is: 76,538.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,487.75 : 123,444.49 = 55,484.76 : x
  2. Step 2: Convert to fraction form
    89,487.75/123,444.49 = 55,484.76/x
  3. Step 3: Cross multiply
    89,487.75x = 123,444.49 × 55,484.76
  4. Step 4: Simplify right side
    89,487.75x = 6,849,287,900.97
  5. Step 5: Solve for x
    x = 6,849,287,900.97/89,487.75
  6. Step 6: Final answer
    x = 76,538.83

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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.