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Finding the Fourth Proportional to 85,100.80, 127,699.80 and 58,824.40

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Solution

The fourth proportional to 85,100.80, 127,699.80 and 58,824.40 is: 88,270.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,100.80 : 127,699.80 = 58,824.40 : x
  2. Step 2: Convert to fraction form
    85,100.80/127,699.80 = 58,824.40/x
  3. Step 3: Cross multiply
    85,100.80x = 127,699.80 × 58,824.40
  4. Step 4: Simplify right side
    85,100.80x = 7,511,864,115.12
  5. Step 5: Solve for x
    x = 7,511,864,115.12/85,100.80
  6. Step 6: Final answer
    x = 88,270.19

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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.