Home / 42,422.80-63,634.20-26,909.20

Finding the Fourth Proportional to 42,422.80, 63,634.20 and 26,909.20

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Solution

The fourth proportional to 42,422.80, 63,634.20 and 26,909.20 is: 40,363.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,422.80 : 63,634.20 = 26,909.20 : x
  2. Step 2: Convert to fraction form
    42,422.80/63,634.20 = 26,909.20/x
  3. Step 3: Cross multiply
    42,422.80x = 63,634.20 × 26,909.20
  4. Step 4: Simplify right side
    42,422.80x = 1,712,345,414.64
  5. Step 5: Solve for x
    x = 1,712,345,414.64/42,422.80
  6. Step 6: Final answer
    x = 40,363.80

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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.