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Finding the Fourth Proportional to 91,857.66, 126,754.80 and 51,562.17

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Solution

The fourth proportional to 91,857.66, 126,754.80 and 51,562.17 is: 71,150.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,857.66 : 126,754.80 = 51,562.17 : x
  2. Step 2: Convert to fraction form
    91,857.66/126,754.80 = 51,562.17/x
  3. Step 3: Cross multiply
    91,857.66x = 126,754.80 × 51,562.17
  4. Step 4: Simplify right side
    91,857.66x = 6,535,752,545.92
  5. Step 5: Solve for x
    x = 6,535,752,545.92/91,857.66
  6. Step 6: Final answer
    x = 71,150.87

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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.