Home / 84,427.92-126,567.36-31,800.60

Finding the Fourth Proportional to 84,427.92, 126,567.36 and 31,800.60

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Solution

The fourth proportional to 84,427.92, 126,567.36 and 31,800.60 is: 47,672.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,427.92 : 126,567.36 = 31,800.60 : x
  2. Step 2: Convert to fraction form
    84,427.92/126,567.36 = 31,800.60/x
  3. Step 3: Cross multiply
    84,427.92x = 126,567.36 × 31,800.60
  4. Step 4: Simplify right side
    84,427.92x = 4,024,917,988.42
  5. Step 5: Solve for x
    x = 4,024,917,988.42/84,427.92
  6. Step 6: Final answer
    x = 47,672.83

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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.