Home / 80,948.61-111,711.06-45,138.27

Finding the Fourth Proportional to 80,948.61, 111,711.06 and 45,138.27

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Solution

The fourth proportional to 80,948.61, 111,711.06 and 45,138.27 is: 62,291.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,948.61 : 111,711.06 = 45,138.27 : x
  2. Step 2: Convert to fraction form
    80,948.61/111,711.06 = 45,138.27/x
  3. Step 3: Cross multiply
    80,948.61x = 111,711.06 × 45,138.27
  4. Step 4: Simplify right side
    80,948.61x = 5,042,443,988.27
  5. Step 5: Solve for x
    x = 5,042,443,988.27/80,948.61
  6. Step 6: Final answer
    x = 62,291.92

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.