Home / 84,023.82-126,057.60-31,437.45

Finding the Fourth Proportional to 84,023.82, 126,057.60 and 31,437.45

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Solution

The fourth proportional to 84,023.82, 126,057.60 and 31,437.45 is: 47,164.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,023.82 : 126,057.60 = 31,437.45 : x
  2. Step 2: Convert to fraction form
    84,023.82/126,057.60 = 31,437.45/x
  3. Step 3: Cross multiply
    84,023.82x = 126,057.60 × 31,437.45
  4. Step 4: Simplify right side
    84,023.82x = 3,962,929,497.12
  5. Step 5: Solve for x
    x = 3,962,929,497.12/84,023.82
  6. Step 6: Final answer
    x = 47,164.36

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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.