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Finding the Fourth Proportional to 72,532.54, 100,093.31 and 40,265.30

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Solution

The fourth proportional to 72,532.54, 100,093.31 and 40,265.30 is: 55,565.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,532.54 : 100,093.31 = 40,265.30 : x
  2. Step 2: Convert to fraction form
    72,532.54/100,093.31 = 40,265.30/x
  3. Step 3: Cross multiply
    72,532.54x = 100,093.31 × 40,265.30
  4. Step 4: Simplify right side
    72,532.54x = 4,030,287,355.04
  5. Step 5: Solve for x
    x = 4,030,287,355.04/72,532.54
  6. Step 6: Final answer
    x = 55,565.23

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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.