Home / 83,454.39-125,181.67-21,124.89

Finding the Fourth Proportional to 83,454.39, 125,181.67 and 21,124.89

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Solution

The fourth proportional to 83,454.39, 125,181.67 and 21,124.89 is: 31,687.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,454.39 : 125,181.67 = 21,124.89 : x
  2. Step 2: Convert to fraction form
    83,454.39/125,181.67 = 21,124.89/x
  3. Step 3: Cross multiply
    83,454.39x = 125,181.67 × 21,124.89
  4. Step 4: Simplify right side
    83,454.39x = 2,644,449,008.77
  5. Step 5: Solve for x
    x = 2,644,449,008.77/83,454.39
  6. Step 6: Final answer
    x = 31,687.36

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1.5x scale

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.