Home / 83,542.80-115,289.20-45,817.28

Finding the Fourth Proportional to 83,542.80, 115,289.20 and 45,817.28

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Solution

The fourth proportional to 83,542.80, 115,289.20 and 45,817.28 is: 63,227.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,542.80 : 115,289.20 = 45,817.28 : x
  2. Step 2: Convert to fraction form
    83,542.80/115,289.20 = 45,817.28/x
  3. Step 3: Cross multiply
    83,542.80x = 115,289.20 × 45,817.28
  4. Step 4: Simplify right side
    83,542.80x = 5,282,237,557.38
  5. Step 5: Solve for x
    x = 5,282,237,557.38/83,542.80
  6. Step 6: Final answer
    x = 63,227.92

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1.5x scale

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.