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Finding the Fourth Proportional to 82,863.80, 124,101.30 and 56,425.40

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Solution

The fourth proportional to 82,863.80, 124,101.30 and 56,425.40 is: 84,505.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,863.80 : 124,101.30 = 56,425.40 : x
  2. Step 2: Convert to fraction form
    82,863.80/124,101.30 = 56,425.40/x
  3. Step 3: Cross multiply
    82,863.80x = 124,101.30 × 56,425.40
  4. Step 4: Simplify right side
    82,863.80x = 7,002,465,493.02
  5. Step 5: Solve for x
    x = 7,002,465,493.02/82,863.80
  6. Step 6: Final answer
    x = 84,505.72

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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.