Home / 55,517.52-76,621.48-31,638.72

Finding the Fourth Proportional to 55,517.52, 76,621.48 and 31,638.72

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Solution

The fourth proportional to 55,517.52, 76,621.48 and 31,638.72 is: 43,665.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,517.52 : 76,621.48 = 31,638.72 : x
  2. Step 2: Convert to fraction form
    55,517.52/76,621.48 = 31,638.72/x
  3. Step 3: Cross multiply
    55,517.52x = 76,621.48 × 31,638.72
  4. Step 4: Simplify right side
    55,517.52x = 2,424,205,551.71
  5. Step 5: Solve for x
    x = 2,424,205,551.71/55,517.52
  6. Step 6: Final answer
    x = 43,665.60

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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.