Home / 87,951,025.66-121,321,988.90-54,853,813.96

Finding the Fourth Proportional to 87,951,025.66, 121,321,988.90 and 54,853,813.96

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Solution

The fourth proportional to 87,951,025.66, 121,321,988.90 and 54,853,813.96 is: 75,666,812.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,951,025.66 : 121,321,988.90 = 54,853,813.96 : x
  2. Step 2: Convert to fraction form
    87,951,025.66/121,321,988.90 = 54,853,813.96/x
  3. Step 3: Cross multiply
    87,951,025.66x = 121,321,988.90 × 54,853,813.96
  4. Step 4: Simplify right side
    87,951,025.66x = 6,654,973,807,908,310
  5. Step 5: Solve for x
    x = 6,654,973,807,908,310/87,951,025.66
  6. Step 6: Final answer
    x = 75,666,812.96

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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.