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Finding the Fourth Proportional to 82,276.40, 123,401.40 and 29,658.80

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Solution

The fourth proportional to 82,276.40, 123,401.40 and 29,658.80 is: 44,483.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,276.40 : 123,401.40 = 29,658.80 : x
  2. Step 2: Convert to fraction form
    82,276.40/123,401.40 = 29,658.80/x
  3. Step 3: Cross multiply
    82,276.40x = 123,401.40 × 29,658.80
  4. Step 4: Simplify right side
    82,276.40x = 3,659,937,442.32
  5. Step 5: Solve for x
    x = 3,659,937,442.32/82,276.40
  6. Step 6: Final answer
    x = 44,483.44

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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.