Home / 76,928.38-115,444.11-27,008.63

Finding the Fourth Proportional to 76,928.38, 115,444.11 and 27,008.63

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Solution

The fourth proportional to 76,928.38, 115,444.11 and 27,008.63 is: 40,531.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,928.38 : 115,444.11 = 27,008.63 : x
  2. Step 2: Convert to fraction form
    76,928.38/115,444.11 = 27,008.63/x
  3. Step 3: Cross multiply
    76,928.38x = 115,444.11 × 27,008.63
  4. Step 4: Simplify right side
    76,928.38x = 3,117,986,675.45
  5. Step 5: Solve for x
    x = 3,117,986,675.45/76,928.38
  6. Step 6: Final answer
    x = 40,531.03

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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.