Home / 78,327.90-117,492.45-22,169.82

Finding the Fourth Proportional to 78,327.90, 117,492.45 and 22,169.82

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Solution

The fourth proportional to 78,327.90, 117,492.45 and 22,169.82 is: 33,254.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,327.90 : 117,492.45 = 22,169.82 : x
  2. Step 2: Convert to fraction form
    78,327.90/117,492.45 = 22,169.82/x
  3. Step 3: Cross multiply
    78,327.90x = 117,492.45 × 22,169.82
  4. Step 4: Simplify right side
    78,327.90x = 2,604,786,467.86
  5. Step 5: Solve for x
    x = 2,604,786,467.86/78,327.90
  6. Step 6: Final answer
    x = 33,254.90

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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.