Home / 55,113.17-76,062.12-31,237.28

Finding the Fourth Proportional to 55,113.17, 76,062.12 and 31,237.28

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Solution

The fourth proportional to 55,113.17, 76,062.12 and 31,237.28 is: 43,110.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,113.17 : 76,062.12 = 31,237.28 : x
  2. Step 2: Convert to fraction form
    55,113.17/76,062.12 = 31,237.28/x
  3. Step 3: Cross multiply
    55,113.17x = 76,062.12 × 31,237.28
  4. Step 4: Simplify right side
    55,113.17x = 2,375,973,359.52
  5. Step 5: Solve for x
    x = 2,375,973,359.52/55,113.17
  6. Step 6: Final answer
    x = 43,110.81

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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.