Home / 50,129.50-69,172.12-29,979.02

Finding the Fourth Proportional to 50,129.50, 69,172.12 and 29,979.02

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Solution

The fourth proportional to 50,129.50, 69,172.12 and 29,979.02 is: 41,367.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,129.50 : 69,172.12 = 29,979.02 : x
  2. Step 2: Convert to fraction form
    50,129.50/69,172.12 = 29,979.02/x
  3. Step 3: Cross multiply
    50,129.50x = 69,172.12 × 29,979.02
  4. Step 4: Simplify right side
    50,129.50x = 2,073,712,368.92
  5. Step 5: Solve for x
    x = 2,073,712,368.92/50,129.50
  6. Step 6: Final answer
    x = 41,367.11

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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.