Home / 83,981.80-115,890.51-52,150.02

Finding the Fourth Proportional to 83,981.80, 115,890.51 and 52,150.02

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Solution

The fourth proportional to 83,981.80, 115,890.51 and 52,150.02 is: 71,964.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,981.80 : 115,890.51 = 52,150.02 : x
  2. Step 2: Convert to fraction form
    83,981.80/115,890.51 = 52,150.02/x
  3. Step 3: Cross multiply
    83,981.80x = 115,890.51 × 52,150.02
  4. Step 4: Simplify right side
    83,981.80x = 6,043,692,414.31
  5. Step 5: Solve for x
    x = 6,043,692,414.31/83,981.80
  6. Step 6: Final answer
    x = 71,964.31

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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.