Home / 76,911.10-115,366.65-47,232.70

Finding the Fourth Proportional to 76,911.10, 115,366.65 and 47,232.70

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Solution

The fourth proportional to 76,911.10, 115,366.65 and 47,232.70 is: 70,849.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,911.10 : 115,366.65 = 47,232.70 : x
  2. Step 2: Convert to fraction form
    76,911.10/115,366.65 = 47,232.70/x
  3. Step 3: Cross multiply
    76,911.10x = 115,366.65 × 47,232.70
  4. Step 4: Simplify right side
    76,911.10x = 5,449,078,369.46
  5. Step 5: Solve for x
    x = 5,449,078,369.46/76,911.10
  6. Step 6: Final answer
    x = 70,849.05

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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.