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Finding the Fourth Proportional to 73,540.86, 101,589.75 and 65,580.54

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Solution

The fourth proportional to 73,540.86, 101,589.75 and 65,580.54 is: 90,593.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,540.86 : 101,589.75 = 65,580.54 : x
  2. Step 2: Convert to fraction form
    73,540.86/101,589.75 = 65,580.54/x
  3. Step 3: Cross multiply
    73,540.86x = 101,589.75 × 65,580.54
  4. Step 4: Simplify right side
    73,540.86x = 6,662,310,663.47
  5. Step 5: Solve for x
    x = 6,662,310,663.47/73,540.86
  6. Step 6: Final answer
    x = 90,593.32

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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.