Home / 76,987.38-115,519.38-43,232.46

Finding the Fourth Proportional to 76,987.38, 115,519.38 and 43,232.46

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Solution

The fourth proportional to 76,987.38, 115,519.38 and 43,232.46 is: 64,870.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,987.38 : 115,519.38 = 43,232.46 : x
  2. Step 2: Convert to fraction form
    76,987.38/115,519.38 = 43,232.46/x
  3. Step 3: Cross multiply
    76,987.38x = 115,519.38 × 43,232.46
  4. Step 4: Simplify right side
    76,987.38x = 4,994,186,975.07
  5. Step 5: Solve for x
    x = 4,994,186,975.07/76,987.38
  6. Step 6: Final answer
    x = 64,870.20

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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.