Home / 91,539.45-137,329.86-49,418.61

Finding the Fourth Proportional to 91,539.45, 137,329.86 and 49,418.61

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Solution

The fourth proportional to 91,539.45, 137,329.86 and 49,418.61 is: 74,139.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,539.45 : 137,329.86 = 49,418.61 : x
  2. Step 2: Convert to fraction form
    91,539.45/137,329.86 = 49,418.61/x
  3. Step 3: Cross multiply
    91,539.45x = 137,329.86 × 49,418.61
  4. Step 4: Simplify right side
    91,539.45x = 6,786,650,792.69
  5. Step 5: Solve for x
    x = 6,786,650,792.69/91,539.45
  6. Step 6: Final answer
    x = 74,139.08

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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.