Home / 78,286.53-117,430.52-24,986.61

Finding the Fourth Proportional to 78,286.53, 117,430.52 and 24,986.61

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Solution

The fourth proportional to 78,286.53, 117,430.52 and 24,986.61 is: 37,480.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,286.53 : 117,430.52 = 24,986.61 : x
  2. Step 2: Convert to fraction form
    78,286.53/117,430.52 = 24,986.61/x
  3. Step 3: Cross multiply
    78,286.53x = 117,430.52 × 24,986.61
  4. Step 4: Simplify right side
    78,286.53x = 2,934,190,040.04
  5. Step 5: Solve for x
    x = 2,934,190,040.04/78,286.53
  6. Step 6: Final answer
    x = 37,480.14

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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.