Home / 83,486.43-125,278.79-30,932.55

Finding the Fourth Proportional to 83,486.43, 125,278.79 and 30,932.55

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Solution

The fourth proportional to 83,486.43, 125,278.79 and 30,932.55 is: 46,417.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,486.43 : 125,278.79 = 30,932.55 : x
  2. Step 2: Convert to fraction form
    83,486.43/125,278.79 = 30,932.55/x
  3. Step 3: Cross multiply
    83,486.43x = 125,278.79 × 30,932.55
  4. Step 4: Simplify right side
    83,486.43x = 3,875,192,280.95
  5. Step 5: Solve for x
    x = 3,875,192,280.95/83,486.43
  6. Step 6: Final answer
    x = 46,417.03

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.