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Finding the Fourth Proportional to 74,006.80, 111,010.20 and 65,453.20

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Solution

The fourth proportional to 74,006.80, 111,010.20 and 65,453.20 is: 98,179.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,006.80 : 111,010.20 = 65,453.20 : x
  2. Step 2: Convert to fraction form
    74,006.80/111,010.20 = 65,453.20/x
  3. Step 3: Cross multiply
    74,006.80x = 111,010.20 × 65,453.20
  4. Step 4: Simplify right side
    74,006.80x = 7,265,972,822.64
  5. Step 5: Solve for x
    x = 7,265,972,822.64/74,006.80
  6. Step 6: Final answer
    x = 98,179.80

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1.5x scale

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.