Home / 82,702.64-124,010.76-43,163.12

Finding the Fourth Proportional to 82,702.64, 124,010.76 and 43,163.12

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Solution

The fourth proportional to 82,702.64, 124,010.76 and 43,163.12 is: 64,722.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,702.64 : 124,010.76 = 43,163.12 : x
  2. Step 2: Convert to fraction form
    82,702.64/124,010.76 = 43,163.12/x
  3. Step 3: Cross multiply
    82,702.64x = 124,010.76 × 43,163.12
  4. Step 4: Simplify right side
    82,702.64x = 5,352,691,315.17
  5. Step 5: Solve for x
    x = 5,352,691,315.17/82,702.64
  6. Step 6: Final answer
    x = 64,722.13

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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.