Home / 55,306.54-76,323.05-31,432.60

Finding the Fourth Proportional to 55,306.54, 76,323.05 and 31,432.60

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Solution

The fourth proportional to 55,306.54, 76,323.05 and 31,432.60 is: 43,377.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,306.54 : 76,323.05 = 31,432.60 : x
  2. Step 2: Convert to fraction form
    55,306.54/76,323.05 = 31,432.60/x
  3. Step 3: Cross multiply
    55,306.54x = 76,323.05 × 31,432.60
  4. Step 4: Simplify right side
    55,306.54x = 2,399,031,957.54
  5. Step 5: Solve for x
    x = 2,399,031,957.54/55,306.54
  6. Step 6: Final answer
    x = 43,377.00

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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.