Home / 91,788.30-137,723.72-49,618.98

Finding the Fourth Proportional to 91,788.30, 137,723.72 and 49,618.98

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Solution

The fourth proportional to 91,788.30, 137,723.72 and 49,618.98 is: 74,450.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,788.30 : 137,723.72 = 49,618.98 : x
  2. Step 2: Convert to fraction form
    91,788.30/137,723.72 = 49,618.98/x
  3. Step 3: Cross multiply
    91,788.30x = 137,723.72 × 49,618.98
  4. Step 4: Simplify right side
    91,788.30x = 6,833,710,260.11
  5. Step 5: Solve for x
    x = 6,833,710,260.11/91,788.30
  6. Step 6: Final answer
    x = 74,450.78

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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.