Home / 77,273.20-115,909.80-47,748.70

Finding the Fourth Proportional to 77,273.20, 115,909.80 and 47,748.70

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Solution

The fourth proportional to 77,273.20, 115,909.80 and 47,748.70 is: 71,623.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,273.20 : 115,909.80 = 47,748.70 : x
  2. Step 2: Convert to fraction form
    77,273.20/115,909.80 = 47,748.70/x
  3. Step 3: Cross multiply
    77,273.20x = 115,909.80 × 47,748.70
  4. Step 4: Simplify right side
    77,273.20x = 5,534,542,267.26
  5. Step 5: Solve for x
    x = 5,534,542,267.26/77,273.20
  6. Step 6: Final answer
    x = 71,623.05

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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.