Home / 78,331.36-117,492.90-48,351.28

Finding the Fourth Proportional to 78,331.36, 117,492.90 and 48,351.28

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Solution

The fourth proportional to 78,331.36, 117,492.90 and 48,351.28 is: 72,524.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,331.36 : 117,492.90 = 48,351.28 : x
  2. Step 2: Convert to fraction form
    78,331.36/117,492.90 = 48,351.28/x
  3. Step 3: Cross multiply
    78,331.36x = 117,492.90 × 48,351.28
  4. Step 4: Simplify right side
    78,331.36x = 5,680,932,105.91
  5. Step 5: Solve for x
    x = 5,680,932,105.91/78,331.36
  6. Step 6: Final answer
    x = 72,524.36

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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.