Home / 92,319.39-138,479.13-29,145.92

Finding the Fourth Proportional to 92,319.39, 138,479.13 and 29,145.92

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Solution

The fourth proportional to 92,319.39, 138,479.13 and 29,145.92 is: 43,718.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,319.39 : 138,479.13 = 29,145.92 : x
  2. Step 2: Convert to fraction form
    92,319.39/138,479.13 = 29,145.92/x
  3. Step 3: Cross multiply
    92,319.39x = 138,479.13 × 29,145.92
  4. Step 4: Simplify right side
    92,319.39x = 4,036,101,644.65
  5. Step 5: Solve for x
    x = 4,036,101,644.65/92,319.39
  6. Step 6: Final answer
    x = 43,718.89

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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.