Home / 75,252.92-112,870.12-43,680.16

Finding the Fourth Proportional to 75,252.92, 112,870.12 and 43,680.16

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Solution

The fourth proportional to 75,252.92, 112,870.12 and 43,680.16 is: 65,514.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,252.92 : 112,870.12 = 43,680.16 : x
  2. Step 2: Convert to fraction form
    75,252.92/112,870.12 = 43,680.16/x
  3. Step 3: Cross multiply
    75,252.92x = 112,870.12 × 43,680.16
  4. Step 4: Simplify right side
    75,252.92x = 4,930,184,900.82
  5. Step 5: Solve for x
    x = 4,930,184,900.82/75,252.92
  6. Step 6: Final answer
    x = 65,514.87

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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.