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Finding the Fourth Proportional to 48,028.80, 71,978.40 and 32,188.80

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Solution

The fourth proportional to 48,028.80, 71,978.40 and 32,188.80 is: 48,239.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,028.80 : 71,978.40 = 32,188.80 : x
  2. Step 2: Convert to fraction form
    48,028.80/71,978.40 = 32,188.80/x
  3. Step 3: Cross multiply
    48,028.80x = 71,978.40 × 32,188.80
  4. Step 4: Simplify right side
    48,028.80x = 2,316,898,321.92
  5. Step 5: Solve for x
    x = 2,316,898,321.92/48,028.80
  6. Step 6: Final answer
    x = 48,239.77

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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.