Home / 83,014.80-124,522.20-20,685.30

Finding the Fourth Proportional to 83,014.80, 124,522.20 and 20,685.30

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Solution

The fourth proportional to 83,014.80, 124,522.20 and 20,685.30 is: 31,027.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,014.80 : 124,522.20 = 20,685.30 : x
  2. Step 2: Convert to fraction form
    83,014.80/124,522.20 = 20,685.30/x
  3. Step 3: Cross multiply
    83,014.80x = 124,522.20 × 20,685.30
  4. Step 4: Simplify right side
    83,014.80x = 2,575,779,063.66
  5. Step 5: Solve for x
    x = 2,575,779,063.66/83,014.80
  6. Step 6: Final answer
    x = 31,027.95

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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.