Home / 84,024.82-126,059.10-31,438.45

Finding the Fourth Proportional to 84,024.82, 126,059.10 and 31,438.45

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Solution

The fourth proportional to 84,024.82, 126,059.10 and 31,438.45 is: 47,165.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,024.82 : 126,059.10 = 31,438.45 : x
  2. Step 2: Convert to fraction form
    84,024.82/126,059.10 = 31,438.45/x
  3. Step 3: Cross multiply
    84,024.82x = 126,059.10 × 31,438.45
  4. Step 4: Simplify right side
    84,024.82x = 3,963,102,712.40
  5. Step 5: Solve for x
    x = 3,963,102,712.40/84,024.82
  6. Step 6: Final answer
    x = 47,165.86

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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.