Home / 67,885.46-101,787.26-30,438.76

Finding the Fourth Proportional to 67,885.46, 101,787.26 and 30,438.76

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Solution

The fourth proportional to 67,885.46, 101,787.26 and 30,438.76 is: 45,639.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,885.46 : 101,787.26 = 30,438.76 : x
  2. Step 2: Convert to fraction form
    67,885.46/101,787.26 = 30,438.76/x
  3. Step 3: Cross multiply
    67,885.46x = 101,787.26 × 30,438.76
  4. Step 4: Simplify right side
    67,885.46x = 3,098,277,978.20
  5. Step 5: Solve for x
    x = 3,098,277,978.20/67,885.46
  6. Step 6: Final answer
    x = 45,639.79

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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.