Home / 78,818.28-118,247.22-22,658.49

Finding the Fourth Proportional to 78,818.28, 118,247.22 and 22,658.49

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Solution

The fourth proportional to 78,818.28, 118,247.22 and 22,658.49 is: 33,993.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,818.28 : 118,247.22 = 22,658.49 : x
  2. Step 2: Convert to fraction form
    78,818.28/118,247.22 = 22,658.49/x
  3. Step 3: Cross multiply
    78,818.28x = 118,247.22 × 22,658.49
  4. Step 4: Simplify right side
    78,818.28x = 2,679,303,451.90
  5. Step 5: Solve for x
    x = 2,679,303,451.90/78,818.28
  6. Step 6: Final answer
    x = 33,993.43

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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.