Home / 82,891.32-124,337.82-66,356.48

Finding the Fourth Proportional to 82,891.32, 124,337.82 and 66,356.48

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Solution

The fourth proportional to 82,891.32, 124,337.82 and 66,356.48 is: 99,535.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,891.32 : 124,337.82 = 66,356.48 : x
  2. Step 2: Convert to fraction form
    82,891.32/124,337.82 = 66,356.48/x
  3. Step 3: Cross multiply
    82,891.32x = 124,337.82 × 66,356.48
  4. Step 4: Simplify right side
    82,891.32x = 8,250,620,066.07
  5. Step 5: Solve for x
    x = 8,250,620,066.07/82,891.32
  6. Step 6: Final answer
    x = 99,535.39

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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.