Home / 67,864.30-101,836.14-28,418.11

Finding the Fourth Proportional to 67,864.30, 101,836.14 and 28,418.11

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Solution

The fourth proportional to 67,864.30, 101,836.14 and 28,418.11 is: 42,643.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,864.30 : 101,836.14 = 28,418.11 : x
  2. Step 2: Convert to fraction form
    67,864.30/101,836.14 = 28,418.11/x
  3. Step 3: Cross multiply
    67,864.30x = 101,836.14 × 28,418.11
  4. Step 4: Simplify right side
    67,864.30x = 2,893,990,628.50
  5. Step 5: Solve for x
    x = 2,893,990,628.50/67,864.30
  6. Step 6: Final answer
    x = 42,643.79

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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.