Home / 67,890.59-101,822.70-34,147.61

Finding the Fourth Proportional to 67,890.59, 101,822.70 and 34,147.61

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Solution

The fourth proportional to 67,890.59, 101,822.70 and 34,147.61 is: 51,214.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,890.59 : 101,822.70 = 34,147.61 : x
  2. Step 2: Convert to fraction form
    67,890.59/101,822.70 = 34,147.61/x
  3. Step 3: Cross multiply
    67,890.59x = 101,822.70 × 34,147.61
  4. Step 4: Simplify right side
    67,890.59x = 3,477,001,848.75
  5. Step 5: Solve for x
    x = 3,477,001,848.75/67,890.59
  6. Step 6: Final answer
    x = 51,214.78

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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.