Home / 91,811.30-137,716.95-49,675.10

Finding the Fourth Proportional to 91,811.30, 137,716.95 and 49,675.10

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Solution

The fourth proportional to 91,811.30, 137,716.95 and 49,675.10 is: 74,512.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,811.30 : 137,716.95 = 49,675.10 : x
  2. Step 2: Convert to fraction form
    91,811.30/137,716.95 = 49,675.10/x
  3. Step 3: Cross multiply
    91,811.30x = 137,716.95 × 49,675.10
  4. Step 4: Simplify right side
    91,811.30x = 6,841,103,262.95
  5. Step 5: Solve for x
    x = 6,841,103,262.95/91,811.30
  6. Step 6: Final answer
    x = 74,512.65

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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.