Home / 91,679.04-137,518.68-25,119.75

Finding the Fourth Proportional to 91,679.04, 137,518.68 and 25,119.75

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Solution

The fourth proportional to 91,679.04, 137,518.68 and 25,119.75 is: 37,679.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,679.04 : 137,518.68 = 25,119.75 : x
  2. Step 2: Convert to fraction form
    91,679.04/137,518.68 = 25,119.75/x
  3. Step 3: Cross multiply
    91,679.04x = 137,518.68 × 25,119.75
  4. Step 4: Simplify right side
    91,679.04x = 3,454,434,861.93
  5. Step 5: Solve for x
    x = 3,454,434,861.93/91,679.04
  6. Step 6: Final answer
    x = 37,679.66

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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.