Home / 48,647.76-67,089.12-30,711.60

Finding the Fourth Proportional to 48,647.76, 67,089.12 and 30,711.60

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Solution

The fourth proportional to 48,647.76, 67,089.12 and 30,711.60 is: 42,353.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,647.76 : 67,089.12 = 30,711.60 : x
  2. Step 2: Convert to fraction form
    48,647.76/67,089.12 = 30,711.60/x
  3. Step 3: Cross multiply
    48,647.76x = 67,089.12 × 30,711.60
  4. Step 4: Simplify right side
    48,647.76x = 2,060,414,217.79
  5. Step 5: Solve for x
    x = 2,060,414,217.79/48,647.76
  6. Step 6: Final answer
    x = 42,353.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.