Home / 55,113.79-76,057.91-31,239.97

Finding the Fourth Proportional to 55,113.79, 76,057.91 and 31,239.97

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Solution

The fourth proportional to 55,113.79, 76,057.91 and 31,239.97 is: 43,111.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,113.79 : 76,057.91 = 31,239.97 : x
  2. Step 2: Convert to fraction form
    55,113.79/76,057.91 = 31,239.97/x
  3. Step 3: Cross multiply
    55,113.79x = 76,057.91 × 31,239.97
  4. Step 4: Simplify right side
    55,113.79x = 2,376,046,826.66
  5. Step 5: Solve for x
    x = 2,376,046,826.66/55,113.79
  6. Step 6: Final answer
    x = 43,111.66

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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.