Home / 76,659.20-114,770.10-47,134.70

Finding the Fourth Proportional to 76,659.20, 114,770.10 and 47,134.70

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Solution

The fourth proportional to 76,659.20, 114,770.10 and 47,134.70 is: 70,567.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,659.20 : 114,770.10 = 47,134.70 : x
  2. Step 2: Convert to fraction form
    76,659.20/114,770.10 = 47,134.70/x
  3. Step 3: Cross multiply
    76,659.20x = 114,770.10 × 47,134.70
  4. Step 4: Simplify right side
    76,659.20x = 5,409,654,232.47
  5. Step 5: Solve for x
    x = 5,409,654,232.47/76,659.20
  6. Step 6: Final answer
    x = 70,567.58

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1.5x scale

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.