Home / 67,686.30-101,513.04-28,243.74

Finding the Fourth Proportional to 67,686.30, 101,513.04 and 28,243.74

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Solution

The fourth proportional to 67,686.30, 101,513.04 and 28,243.74 is: 42,358.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,686.30 : 101,513.04 = 28,243.74 : x
  2. Step 2: Convert to fraction form
    67,686.30/101,513.04 = 28,243.74/x
  3. Step 3: Cross multiply
    67,686.30x = 101,513.04 × 28,243.74
  4. Step 4: Simplify right side
    67,686.30x = 2,867,107,908.37
  5. Step 5: Solve for x
    x = 2,867,107,908.37/67,686.30
  6. Step 6: Final answer
    x = 42,358.76

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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.