Home / 55,587.60-76,703.76-31,712.88

Finding the Fourth Proportional to 55,587.60, 76,703.76 and 31,712.88

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Solution

The fourth proportional to 55,587.60, 76,703.76 and 31,712.88 is: 43,759.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,587.60 : 76,703.76 = 31,712.88 : x
  2. Step 2: Convert to fraction form
    55,587.60/76,703.76 = 31,712.88/x
  3. Step 3: Cross multiply
    55,587.60x = 76,703.76 × 31,712.88
  4. Step 4: Simplify right side
    55,587.60x = 2,432,497,136.43
  5. Step 5: Solve for x
    x = 2,432,497,136.43/55,587.60
  6. Step 6: Final answer
    x = 43,759.71

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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.