Home / 99,887.30-137,848.66-57,445.86

Finding the Fourth Proportional to 99,887.30, 137,848.66 and 57,445.86

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Solution

The fourth proportional to 99,887.30, 137,848.66 and 57,445.86 is: 79,277.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,887.30 : 137,848.66 = 57,445.86 : x
  2. Step 2: Convert to fraction form
    99,887.30/137,848.66 = 57,445.86/x
  3. Step 3: Cross multiply
    99,887.30x = 137,848.66 × 57,445.86
  4. Step 4: Simplify right side
    99,887.30x = 7,918,834,679.93
  5. Step 5: Solve for x
    x = 7,918,834,679.93/99,887.30
  6. Step 6: Final answer
    x = 79,277.70

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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.