Home / 82,773.16-124,160.04-20,443.66

Finding the Fourth Proportional to 82,773.16, 124,160.04 and 20,443.66

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Solution

The fourth proportional to 82,773.16, 124,160.04 and 20,443.66 is: 30,665.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,773.16 : 124,160.04 = 20,443.66 : x
  2. Step 2: Convert to fraction form
    82,773.16/124,160.04 = 20,443.66/x
  3. Step 3: Cross multiply
    82,773.16x = 124,160.04 × 20,443.66
  4. Step 4: Simplify right side
    82,773.16x = 2,538,285,332.95
  5. Step 5: Solve for x
    x = 2,538,285,332.95/82,773.16
  6. Step 6: Final answer
    x = 30,665.56

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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.