Home / 91,700.05-137,589.66-49,609.78

Finding the Fourth Proportional to 91,700.05, 137,589.66 and 49,609.78

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Solution

The fourth proportional to 91,700.05, 137,589.66 and 49,609.78 is: 74,436.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,700.05 : 137,589.66 = 49,609.78 : x
  2. Step 2: Convert to fraction form
    91,700.05/137,589.66 = 49,609.78/x
  3. Step 3: Cross multiply
    91,700.05x = 137,589.66 × 49,609.78
  4. Step 4: Simplify right side
    91,700.05x = 6,825,792,762.87
  5. Step 5: Solve for x
    x = 6,825,792,762.87/91,700.05
  6. Step 6: Final answer
    x = 74,436.09

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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.