Home / 67,780.40-101,684.16-23,408.76

Finding the Fourth Proportional to 67,780.40, 101,684.16 and 23,408.76

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Solution

The fourth proportional to 67,780.40, 101,684.16 and 23,408.76 is: 35,117.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,780.40 : 101,684.16 = 23,408.76 : x
  2. Step 2: Convert to fraction form
    67,780.40/101,684.16 = 23,408.76/x
  3. Step 3: Cross multiply
    67,780.40x = 101,684.16 × 23,408.76
  4. Step 4: Simplify right side
    67,780.40x = 2,380,300,097.24
  5. Step 5: Solve for x
    x = 2,380,300,097.24/67,780.40
  6. Step 6: Final answer
    x = 35,117.82

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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.