Home / 73,317.66-109,981.14-20,731.24

Finding the Fourth Proportional to 73,317.66, 109,981.14 and 20,731.24

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Solution

The fourth proportional to 73,317.66, 109,981.14 and 20,731.24 is: 31,098.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,317.66 : 109,981.14 = 20,731.24 : x
  2. Step 2: Convert to fraction form
    73,317.66/109,981.14 = 20,731.24/x
  3. Step 3: Cross multiply
    73,317.66x = 109,981.14 × 20,731.24
  4. Step 4: Simplify right side
    73,317.66x = 2,280,045,585.16
  5. Step 5: Solve for x
    x = 2,280,045,585.16/73,317.66
  6. Step 6: Final answer
    x = 31,098.18

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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.