Home / 84,397.55-126,557.33-31,076.12

Finding the Fourth Proportional to 84,397.55, 126,557.33 and 31,076.12

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Solution

The fourth proportional to 84,397.55, 126,557.33 and 31,076.12 is: 46,599.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,397.55 : 126,557.33 = 31,076.12 : x
  2. Step 2: Convert to fraction form
    84,397.55/126,557.33 = 31,076.12/x
  3. Step 3: Cross multiply
    84,397.55x = 126,557.33 × 31,076.12
  4. Step 4: Simplify right side
    84,397.55x = 3,932,909,985.79
  5. Step 5: Solve for x
    x = 3,932,909,985.79/84,397.55
  6. Step 6: Final answer
    x = 46,599.82

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.