Home / 84,134.86-126,131.50-39,133.35

Finding the Fourth Proportional to 84,134.86, 126,131.50 and 39,133.35

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Solution

The fourth proportional to 84,134.86, 126,131.50 and 39,133.35 is: 58,667.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,134.86 : 126,131.50 = 39,133.35 : x
  2. Step 2: Convert to fraction form
    84,134.86/126,131.50 = 39,133.35/x
  3. Step 3: Cross multiply
    84,134.86x = 126,131.50 × 39,133.35
  4. Step 4: Simplify right side
    84,134.86x = 4,935,948,135.53
  5. Step 5: Solve for x
    x = 4,935,948,135.53/84,134.86
  6. Step 6: Final answer
    x = 58,667.10

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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.