Home / 55,105.20-76,059-31,246.11

Finding the Fourth Proportional to 55,105.20, 76,059 and 31,246.11

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Solution

The fourth proportional to 55,105.20, 76,059 and 31,246.11 is: 43,127.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,105.20 : 76,059 = 31,246.11 : x
  2. Step 2: Convert to fraction form
    55,105.20/76,059 = 31,246.11/x
  3. Step 3: Cross multiply
    55,105.20x = 76,059 × 31,246.11
  4. Step 4: Simplify right side
    55,105.20x = 2,376,547,880.49
  5. Step 5: Solve for x
    x = 2,376,547,880.49/55,105.20
  6. Step 6: Final answer
    x = 43,127.47

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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.