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Finding the Fourth Proportional to 72,532.01, 100,089.16 and 40,264.11

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Solution

The fourth proportional to 72,532.01, 100,089.16 and 40,264.11 is: 55,561.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,532.01 : 100,089.16 = 40,264.11 : x
  2. Step 2: Convert to fraction form
    72,532.01/100,089.16 = 40,264.11/x
  3. Step 3: Cross multiply
    72,532.01x = 100,089.16 × 40,264.11
  4. Step 4: Simplify right side
    72,532.01x = 4,030,000,847.39
  5. Step 5: Solve for x
    x = 4,030,000,847.39/72,532.01
  6. Step 6: Final answer
    x = 55,561.69

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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.