Home / 83,276.11-124,909.30-20,941.75

Finding the Fourth Proportional to 83,276.11, 124,909.30 and 20,941.75

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Solution

The fourth proportional to 83,276.11, 124,909.30 and 20,941.75 is: 31,411.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,276.11 : 124,909.30 = 20,941.75 : x
  2. Step 2: Convert to fraction form
    83,276.11/124,909.30 = 20,941.75/x
  3. Step 3: Cross multiply
    83,276.11x = 124,909.30 × 20,941.75
  4. Step 4: Simplify right side
    83,276.11x = 2,615,819,333.28
  5. Step 5: Solve for x
    x = 2,615,819,333.28/83,276.11
  6. Step 6: Final answer
    x = 31,411.40

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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.