Home / 48,531.84-72,815.56-20,458.96

Finding the Fourth Proportional to 48,531.84, 72,815.56 and 20,458.96

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Solution

The fourth proportional to 48,531.84, 72,815.56 and 20,458.96 is: 30,695.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,531.84 : 72,815.56 = 20,458.96 : x
  2. Step 2: Convert to fraction form
    48,531.84/72,815.56 = 20,458.96/x
  3. Step 3: Cross multiply
    48,531.84x = 72,815.56 × 20,458.96
  4. Step 4: Simplify right side
    48,531.84x = 1,489,730,629.42
  5. Step 5: Solve for x
    x = 1,489,730,629.42/48,531.84
  6. Step 6: Final answer
    x = 30,695.94

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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.