Home / 91,771.45-137,707.34-35,613.78

Finding the Fourth Proportional to 91,771.45, 137,707.34 and 35,613.78

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Solution

The fourth proportional to 91,771.45, 137,707.34 and 35,613.78 is: 53,440.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,771.45 : 137,707.34 = 35,613.78 : x
  2. Step 2: Convert to fraction form
    91,771.45/137,707.34 = 35,613.78/x
  3. Step 3: Cross multiply
    91,771.45x = 137,707.34 × 35,613.78
  4. Step 4: Simplify right side
    91,771.45x = 4,904,278,911.15
  5. Step 5: Solve for x
    x = 4,904,278,911.15/91,771.45
  6. Step 6: Final answer
    x = 53,440.14

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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.