Home / 48,390.40-72,613.56-20,307.92

Finding the Fourth Proportional to 48,390.40, 72,613.56 and 20,307.92

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Solution

The fourth proportional to 48,390.40, 72,613.56 and 20,307.92 is: 30,473.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,390.40 : 72,613.56 = 20,307.92 : x
  2. Step 2: Convert to fraction form
    48,390.40/72,613.56 = 20,307.92/x
  3. Step 3: Cross multiply
    48,390.40x = 72,613.56 × 20,307.92
  4. Step 4: Simplify right side
    48,390.40x = 1,474,630,367.40
  5. Step 5: Solve for x
    x = 1,474,630,367.40/48,390.40
  6. Step 6: Final answer
    x = 30,473.61

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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.