Home / 76,770.04-115,067.52-35,129.56

Finding the Fourth Proportional to 76,770.04, 115,067.52 and 35,129.56

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Solution

The fourth proportional to 76,770.04, 115,067.52 and 35,129.56 is: 52,654.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,770.04 : 115,067.52 = 35,129.56 : x
  2. Step 2: Convert to fraction form
    76,770.04/115,067.52 = 35,129.56/x
  3. Step 3: Cross multiply
    76,770.04x = 115,067.52 × 35,129.56
  4. Step 4: Simplify right side
    76,770.04x = 4,042,271,347.89
  5. Step 5: Solve for x
    x = 4,042,271,347.89/76,770.04
  6. Step 6: Final answer
    x = 52,654.28

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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.