Home / 76,867.19-115,246.32-34,149.15

Finding the Fourth Proportional to 76,867.19, 115,246.32 and 34,149.15

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Solution

The fourth proportional to 76,867.19, 115,246.32 and 34,149.15 is: 51,199.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,867.19 : 115,246.32 = 34,149.15 : x
  2. Step 2: Convert to fraction form
    76,867.19/115,246.32 = 34,149.15/x
  3. Step 3: Cross multiply
    76,867.19x = 115,246.32 × 34,149.15
  4. Step 4: Simplify right side
    76,867.19x = 3,935,563,868.63
  5. Step 5: Solve for x
    x = 3,935,563,868.63/76,867.19
  6. Step 6: Final answer
    x = 51,199.53

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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.