Home / 48,445.55-72,689.09-20,371.91

Finding the Fourth Proportional to 48,445.55, 72,689.09 and 20,371.91

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Solution

The fourth proportional to 48,445.55, 72,689.09 and 20,371.91 is: 30,566.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,445.55 : 72,689.09 = 20,371.91 : x
  2. Step 2: Convert to fraction form
    48,445.55/72,689.09 = 20,371.91/x
  3. Step 3: Cross multiply
    48,445.55x = 72,689.09 × 20,371.91
  4. Step 4: Simplify right side
    48,445.55x = 1,480,815,202.20
  5. Step 5: Solve for x
    x = 1,480,815,202.20/48,445.55
  6. Step 6: Final answer
    x = 30,566.59

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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.