Home / 82,948.78-124,423.03-66,230.47

Finding the Fourth Proportional to 82,948.78, 124,423.03 and 66,230.47

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Solution

The fourth proportional to 82,948.78, 124,423.03 and 66,230.47 is: 99,345.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,948.78 : 124,423.03 = 66,230.47 : x
  2. Step 2: Convert to fraction form
    82,948.78/124,423.03 = 66,230.47/x
  3. Step 3: Cross multiply
    82,948.78x = 124,423.03 × 66,230.47
  4. Step 4: Simplify right side
    82,948.78x = 8,240,595,755.72
  5. Step 5: Solve for x
    x = 8,240,595,755.72/82,948.78
  6. Step 6: Final answer
    x = 99,345.59

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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.