Home / 48,372.80-72,587.21-20,290.35

Finding the Fourth Proportional to 48,372.80, 72,587.21 and 20,290.35

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Solution

The fourth proportional to 48,372.80, 72,587.21 and 20,290.35 is: 30,447.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,372.80 : 72,587.21 = 20,290.35 : x
  2. Step 2: Convert to fraction form
    48,372.80/72,587.21 = 20,290.35/x
  3. Step 3: Cross multiply
    48,372.80x = 72,587.21 × 20,290.35
  4. Step 4: Simplify right side
    48,372.80x = 1,472,819,794.97
  5. Step 5: Solve for x
    x = 1,472,819,794.97/48,372.80
  6. Step 6: Final answer
    x = 30,447.28

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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.