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Finding the Fourth Proportional to 48,081.88, 72,114.60 and 13,013.32

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Solution

The fourth proportional to 48,081.88, 72,114.60 and 13,013.32 is: 19,517.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,081.88 : 72,114.60 = 13,013.32 : x
  2. Step 2: Convert to fraction form
    48,081.88/72,114.60 = 13,013.32/x
  3. Step 3: Cross multiply
    48,081.88x = 72,114.60 × 13,013.32
  4. Step 4: Simplify right side
    48,081.88x = 938,450,366.47
  5. Step 5: Solve for x
    x = 938,450,366.47/48,081.88
  6. Step 6: Final answer
    x = 19,517.76

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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.