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Finding the Fourth Proportional to 48,369.70, 72,582.56 and 20,287.25

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Solution

The fourth proportional to 48,369.70, 72,582.56 and 20,287.25 is: 30,442.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,369.70 : 72,582.56 = 20,287.25 : x
  2. Step 2: Convert to fraction form
    48,369.70/72,582.56 = 20,287.25/x
  3. Step 3: Cross multiply
    48,369.70x = 72,582.56 × 20,287.25
  4. Step 4: Simplify right side
    48,369.70x = 1,472,500,772.53
  5. Step 5: Solve for x
    x = 1,472,500,772.53/48,369.70
  6. Step 6: Final answer
    x = 30,442.63

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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.