Home / 67,801.10-101,920.35-48,215.30

Finding the Fourth Proportional to 67,801.10, 101,920.35 and 48,215.30

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Solution

The fourth proportional to 67,801.10, 101,920.35 and 48,215.30 is: 72,478.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,801.10 : 101,920.35 = 48,215.30 : x
  2. Step 2: Convert to fraction form
    67,801.10/101,920.35 = 48,215.30/x
  3. Step 3: Cross multiply
    67,801.10x = 101,920.35 × 48,215.30
  4. Step 4: Simplify right side
    67,801.10x = 4,914,120,251.36
  5. Step 5: Solve for x
    x = 4,914,120,251.36/67,801.10
  6. Step 6: Final answer
    x = 72,478.47

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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.