Home / 84,327.55-126,428.78-51,039.72

Finding the Fourth Proportional to 84,327.55, 126,428.78 and 51,039.72

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Solution

The fourth proportional to 84,327.55, 126,428.78 and 51,039.72 is: 76,521.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,327.55 : 126,428.78 = 51,039.72 : x
  2. Step 2: Convert to fraction form
    84,327.55/126,428.78 = 51,039.72/x
  3. Step 3: Cross multiply
    84,327.55x = 126,428.78 × 51,039.72
  4. Step 4: Simplify right side
    84,327.55x = 6,452,889,658.74
  5. Step 5: Solve for x
    x = 6,452,889,658.74/84,327.55
  6. Step 6: Final answer
    x = 76,521.73

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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.