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Finding the Fourth Proportional to 48,110.40, 72,069.60 and 42,337.60

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Solution

The fourth proportional to 48,110.40, 72,069.60 and 42,337.60 is: 63,421.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,110.40 : 72,069.60 = 42,337.60 : x
  2. Step 2: Convert to fraction form
    48,110.40/72,069.60 = 42,337.60/x
  3. Step 3: Cross multiply
    48,110.40x = 72,069.60 × 42,337.60
  4. Step 4: Simplify right side
    48,110.40x = 3,051,253,896.96
  5. Step 5: Solve for x
    x = 3,051,253,896.96/48,110.40
  6. Step 6: Final answer
    x = 63,421.92

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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.