Home / 73,731.92-110,585.57-21,129.10

Finding the Fourth Proportional to 73,731.92, 110,585.57 and 21,129.10

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Solution

The fourth proportional to 73,731.92, 110,585.57 and 21,129.10 is: 31,690.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,731.92 : 110,585.57 = 21,129.10 : x
  2. Step 2: Convert to fraction form
    73,731.92/110,585.57 = 21,129.10/x
  3. Step 3: Cross multiply
    73,731.92x = 110,585.57 × 21,129.10
  4. Step 4: Simplify right side
    73,731.92x = 2,336,573,184.98
  5. Step 5: Solve for x
    x = 2,336,573,184.98/73,731.92
  6. Step 6: Final answer
    x = 31,690.12

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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.