Home / 67,815.10-101,759.10-28,376.20

Finding the Fourth Proportional to 67,815.10, 101,759.10 and 28,376.20

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Solution

The fourth proportional to 67,815.10, 101,759.10 and 28,376.20 is: 42,579.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,815.10 : 101,759.10 = 28,376.20 : x
  2. Step 2: Convert to fraction form
    67,815.10/101,759.10 = 28,376.20/x
  3. Step 3: Cross multiply
    67,815.10x = 101,759.10 × 28,376.20
  4. Step 4: Simplify right side
    67,815.10x = 2,887,536,573.42
  5. Step 5: Solve for x
    x = 2,887,536,573.42/67,815.10
  6. Step 6: Final answer
    x = 42,579.55

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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.