Home / 99,877.15-137,829.65-54,555.17

Finding the Fourth Proportional to 99,877.15, 137,829.65 and 54,555.17

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Solution

The fourth proportional to 99,877.15, 137,829.65 and 54,555.17 is: 75,285.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,877.15 : 137,829.65 = 54,555.17 : x
  2. Step 2: Convert to fraction form
    99,877.15/137,829.65 = 54,555.17/x
  3. Step 3: Cross multiply
    99,877.15x = 137,829.65 × 54,555.17
  4. Step 4: Simplify right side
    99,877.15x = 7,519,320,058.59
  5. Step 5: Solve for x
    x = 7,519,320,058.59/99,877.15
  6. Step 6: Final answer
    x = 75,285.69

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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.