Home / 78,733.22-118,170.85-53,371.36

Finding the Fourth Proportional to 78,733.22, 118,170.85 and 53,371.36

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Solution

The fourth proportional to 78,733.22, 118,170.85 and 53,371.36 is: 80,105.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,733.22 : 118,170.85 = 53,371.36 : x
  2. Step 2: Convert to fraction form
    78,733.22/118,170.85 = 53,371.36/x
  3. Step 3: Cross multiply
    78,733.22x = 118,170.85 × 53,371.36
  4. Step 4: Simplify right side
    78,733.22x = 6,306,938,426.50
  5. Step 5: Solve for x
    x = 6,306,938,426.50/78,733.22
  6. Step 6: Final answer
    x = 80,105.18

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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.