Home / 55,113.92-76,063.16-31,238.04

Finding the Fourth Proportional to 55,113.92, 76,063.16 and 31,238.04

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Solution

The fourth proportional to 55,113.92, 76,063.16 and 31,238.04 is: 43,111.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,113.92 : 76,063.16 = 31,238.04 : x
  2. Step 2: Convert to fraction form
    55,113.92/76,063.16 = 31,238.04/x
  3. Step 3: Cross multiply
    55,113.92x = 76,063.16 × 31,238.04
  4. Step 4: Simplify right side
    55,113.92x = 2,376,064,034.61
  5. Step 5: Solve for x
    x = 2,376,064,034.61/55,113.92
  6. Step 6: Final answer
    x = 43,111.87

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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.