Home / 84,065.48-126,013.16-54,502.12

Finding the Fourth Proportional to 84,065.48, 126,013.16 and 54,502.12

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Solution

The fourth proportional to 84,065.48, 126,013.16 and 54,502.12 is: 81,698.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,065.48 : 126,013.16 = 54,502.12 : x
  2. Step 2: Convert to fraction form
    84,065.48/126,013.16 = 54,502.12/x
  3. Step 3: Cross multiply
    84,065.48x = 126,013.16 × 54,502.12
  4. Step 4: Simplify right side
    84,065.48x = 6,867,984,367.90
  5. Step 5: Solve for x
    x = 6,867,984,367.90/84,065.48
  6. Step 6: Final answer
    x = 81,698.03

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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.