Home / 91,378.26-137,065.95-29,047.86

Finding the Fourth Proportional to 91,378.26, 137,065.95 and 29,047.86

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Solution

The fourth proportional to 91,378.26, 137,065.95 and 29,047.86 is: 43,571.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,378.26 : 137,065.95 = 29,047.86 : x
  2. Step 2: Convert to fraction form
    91,378.26/137,065.95 = 29,047.86/x
  3. Step 3: Cross multiply
    91,378.26x = 137,065.95 × 29,047.86
  4. Step 4: Simplify right side
    91,378.26x = 3,981,472,526.37
  5. Step 5: Solve for x
    x = 3,981,472,526.37/91,378.26
  6. Step 6: Final answer
    x = 43,571.33

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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.