Home / 68,854.08-103,281.12-22,139.76

Finding the Fourth Proportional to 68,854.08, 103,281.12 and 22,139.76

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Solution

The fourth proportional to 68,854.08, 103,281.12 and 22,139.76 is: 33,209.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,854.08 : 103,281.12 = 22,139.76 : x
  2. Step 2: Convert to fraction form
    68,854.08/103,281.12 = 22,139.76/x
  3. Step 3: Cross multiply
    68,854.08x = 103,281.12 × 22,139.76
  4. Step 4: Simplify right side
    68,854.08x = 2,286,619,209.33
  5. Step 5: Solve for x
    x = 2,286,619,209.33/68,854.08
  6. Step 6: Final answer
    x = 33,209.64

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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.