Home / 84,231.35-126,339.73-34,316.72

Finding the Fourth Proportional to 84,231.35, 126,339.73 and 34,316.72

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Solution

The fourth proportional to 84,231.35, 126,339.73 and 34,316.72 is: 51,472.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,231.35 : 126,339.73 = 34,316.72 : x
  2. Step 2: Convert to fraction form
    84,231.35/126,339.73 = 34,316.72/x
  3. Step 3: Cross multiply
    84,231.35x = 126,339.73 × 34,316.72
  4. Step 4: Simplify right side
    84,231.35x = 4,335,565,139.29
  5. Step 5: Solve for x
    x = 4,335,565,139.29/84,231.35
  6. Step 6: Final answer
    x = 51,472.11

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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.