Home / 91,769.89-137,704.99-35,612.21

Finding the Fourth Proportional to 91,769.89, 137,704.99 and 35,612.21

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Solution

The fourth proportional to 91,769.89, 137,704.99 and 35,612.21 is: 53,437.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,769.89 : 137,704.99 = 35,612.21 : x
  2. Step 2: Convert to fraction form
    91,769.89/137,704.99 = 35,612.21/x
  3. Step 3: Cross multiply
    91,769.89x = 137,704.99 × 35,612.21
  4. Step 4: Simplify right side
    91,769.89x = 4,903,979,021.93
  5. Step 5: Solve for x
    x = 4,903,979,021.93/91,769.89
  6. Step 6: Final answer
    x = 53,437.78

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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.