Home / 78,915.06-118,389.14-22,755.06

Finding the Fourth Proportional to 78,915.06, 118,389.14 and 22,755.06

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Solution

The fourth proportional to 78,915.06, 118,389.14 and 22,755.06 is: 34,137.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,915.06 : 118,389.14 = 22,755.06 : x
  2. Step 2: Convert to fraction form
    78,915.06/118,389.14 = 22,755.06/x
  3. Step 3: Cross multiply
    78,915.06x = 118,389.14 × 22,755.06
  4. Step 4: Simplify right side
    78,915.06x = 2,693,951,984.05
  5. Step 5: Solve for x
    x = 2,693,951,984.05/78,915.06
  6. Step 6: Final answer
    x = 34,137.36

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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.