Home / 83,487.36-114,526.38-78,967.92

Finding the Fourth Proportional to 83,487.36, 114,526.38 and 78,967.92

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Solution

The fourth proportional to 83,487.36, 114,526.38 and 78,967.92 is: 108,326.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,487.36 : 114,526.38 = 78,967.92 : x
  2. Step 2: Convert to fraction form
    83,487.36/114,526.38 = 78,967.92/x
  3. Step 3: Cross multiply
    83,487.36x = 114,526.38 × 78,967.92
  4. Step 4: Simplify right side
    83,487.36x = 9,043,910,013.73
  5. Step 5: Solve for x
    x = 9,043,910,013.73/83,487.36
  6. Step 6: Final answer
    x = 108,326.70

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.