Home / 91,001.88-136,524.56-28,672.38

Finding the Fourth Proportional to 91,001.88, 136,524.56 and 28,672.38

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Solution

The fourth proportional to 91,001.88, 136,524.56 and 28,672.38 is: 43,015.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,001.88 : 136,524.56 = 28,672.38 : x
  2. Step 2: Convert to fraction form
    91,001.88/136,524.56 = 28,672.38/x
  3. Step 3: Cross multiply
    91,001.88x = 136,524.56 × 28,672.38
  4. Step 4: Simplify right side
    91,001.88x = 3,914,483,920.29
  5. Step 5: Solve for x
    x = 3,914,483,920.29/91,001.88
  6. Step 6: Final answer
    x = 43,015.42

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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.