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Finding the Fourth Proportional to 48,369.56, 72,582.35 and 20,287.11

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Solution

The fourth proportional to 48,369.56, 72,582.35 and 20,287.11 is: 30,442.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,369.56 : 72,582.35 = 20,287.11 : x
  2. Step 2: Convert to fraction form
    48,369.56/72,582.35 = 20,287.11/x
  3. Step 3: Cross multiply
    48,369.56x = 72,582.35 × 20,287.11
  4. Step 4: Simplify right side
    48,369.56x = 1,472,486,052.15
  5. Step 5: Solve for x
    x = 1,472,486,052.15/48,369.56
  6. Step 6: Final answer
    x = 30,442.41

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1.5x scale

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.