Home / 89,690.52-123,776.16-55,717.76

Finding the Fourth Proportional to 89,690.52, 123,776.16 and 55,717.76

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Solution

The fourth proportional to 89,690.52, 123,776.16 and 55,717.76 is: 76,892.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,690.52 : 123,776.16 = 55,717.76 : x
  2. Step 2: Convert to fraction form
    89,690.52/123,776.16 = 55,717.76/x
  3. Step 3: Cross multiply
    89,690.52x = 123,776.16 × 55,717.76
  4. Step 4: Simplify right side
    89,690.52x = 6,896,530,376.60
  5. Step 5: Solve for x
    x = 6,896,530,376.60/89,690.52
  6. Step 6: Final answer
    x = 76,892.52

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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.