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Finding the Fourth Proportional to 66,452.80, 91,518.24 and 65,001.28

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Solution

The fourth proportional to 66,452.80, 91,518.24 and 65,001.28 is: 89,519.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,452.80 : 91,518.24 = 65,001.28 : x
  2. Step 2: Convert to fraction form
    66,452.80/91,518.24 = 65,001.28/x
  3. Step 3: Cross multiply
    66,452.80x = 91,518.24 × 65,001.28
  4. Step 4: Simplify right side
    66,452.80x = 5,948,802,743.35
  5. Step 5: Solve for x
    x = 5,948,802,743.35/66,452.80
  6. Step 6: Final answer
    x = 89,519.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.