Home / 84,070.64-126,109.56-39,134.18

Finding the Fourth Proportional to 84,070.64, 126,109.56 and 39,134.18

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Solution

The fourth proportional to 84,070.64, 126,109.56 and 39,134.18 is: 58,702.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,070.64 : 126,109.56 = 39,134.18 : x
  2. Step 2: Convert to fraction form
    84,070.64/126,109.56 = 39,134.18/x
  3. Step 3: Cross multiply
    84,070.64x = 126,109.56 × 39,134.18
  4. Step 4: Simplify right side
    84,070.64x = 4,935,194,220.76
  5. Step 5: Solve for x
    x = 4,935,194,220.76/84,070.64
  6. Step 6: Final answer
    x = 58,702.95

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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.