Home / 76,947.52-115,473.12-30,194.88

Finding the Fourth Proportional to 76,947.52, 115,473.12 and 30,194.88

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Solution

The fourth proportional to 76,947.52, 115,473.12 and 30,194.88 is: 45,312.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,947.52 : 115,473.12 = 30,194.88 : x
  2. Step 2: Convert to fraction form
    76,947.52/115,473.12 = 30,194.88/x
  3. Step 3: Cross multiply
    76,947.52x = 115,473.12 × 30,194.88
  4. Step 4: Simplify right side
    76,947.52x = 3,486,697,001.63
  5. Step 5: Solve for x
    x = 3,486,697,001.63/76,947.52
  6. Step 6: Final answer
    x = 45,312.66

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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.