Home / 76,712.40-115,045.92-34,568.10

Finding the Fourth Proportional to 76,712.40, 115,045.92 and 34,568.10

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Solution

The fourth proportional to 76,712.40, 115,045.92 and 34,568.10 is: 51,841.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,712.40 : 115,045.92 = 34,568.10 : x
  2. Step 2: Convert to fraction form
    76,712.40/115,045.92 = 34,568.10/x
  3. Step 3: Cross multiply
    76,712.40x = 115,045.92 × 34,568.10
  4. Step 4: Simplify right side
    76,712.40x = 3,976,918,867.15
  5. Step 5: Solve for x
    x = 3,976,918,867.15/76,712.40
  6. Step 6: Final answer
    x = 51,841.93

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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.