Home / 91,577.89-137,256.10-47,180.42

Finding the Fourth Proportional to 91,577.89, 137,256.10 and 47,180.42

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Solution

The fourth proportional to 91,577.89, 137,256.10 and 47,180.42 is: 70,713.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,577.89 : 137,256.10 = 47,180.42 : x
  2. Step 2: Convert to fraction form
    91,577.89/137,256.10 = 47,180.42/x
  3. Step 3: Cross multiply
    91,577.89x = 137,256.10 × 47,180.42
  4. Step 4: Simplify right side
    91,577.89x = 6,475,799,523.38
  5. Step 5: Solve for x
    x = 6,475,799,523.38/91,577.89
  6. Step 6: Final answer
    x = 70,713.57

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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.