Home / 55,748.31-76,930.20-31,876.53

Finding the Fourth Proportional to 55,748.31, 76,930.20 and 31,876.53

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Solution

The fourth proportional to 55,748.31, 76,930.20 and 31,876.53 is: 43,988.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,748.31 : 76,930.20 = 31,876.53 : x
  2. Step 2: Convert to fraction form
    55,748.31/76,930.20 = 31,876.53/x
  3. Step 3: Cross multiply
    55,748.31x = 76,930.20 × 31,876.53
  4. Step 4: Simplify right side
    55,748.31x = 2,452,267,828.21
  5. Step 5: Solve for x
    x = 2,452,267,828.21/55,748.31
  6. Step 6: Final answer
    x = 43,988.20

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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.