Home / 78,834.26-118,238.60-22,661.57

Finding the Fourth Proportional to 78,834.26, 118,238.60 and 22,661.57

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Solution

The fourth proportional to 78,834.26, 118,238.60 and 22,661.57 is: 33,988.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,834.26 : 118,238.60 = 22,661.57 : x
  2. Step 2: Convert to fraction form
    78,834.26/118,238.60 = 22,661.57/x
  3. Step 3: Cross multiply
    78,834.26x = 118,238.60 × 22,661.57
  4. Step 4: Simplify right side
    78,834.26x = 2,679,472,662.85
  5. Step 5: Solve for x
    x = 2,679,472,662.85/78,834.26
  6. Step 6: Final answer
    x = 33,988.68

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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.