Home / 99,883.66-137,867.25-57,455.86

Finding the Fourth Proportional to 99,883.66, 137,867.25 and 57,455.86

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Solution

The fourth proportional to 99,883.66, 137,867.25 and 57,455.86 is: 79,305.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,883.66 : 137,867.25 = 57,455.86 : x
  2. Step 2: Convert to fraction form
    99,883.66/137,867.25 = 57,455.86/x
  3. Step 3: Cross multiply
    99,883.66x = 137,867.25 × 57,455.86
  4. Step 4: Simplify right side
    99,883.66x = 7,921,281,414.59
  5. Step 5: Solve for x
    x = 7,921,281,414.59/99,883.66
  6. Step 6: Final answer
    x = 79,305.08

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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.