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Finding the Fourth Proportional to 75,561.15, 113,791.62 and 65,818.11

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Solution

The fourth proportional to 75,561.15, 113,791.62 and 65,818.11 is: 99,119.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,561.15 : 113,791.62 = 65,818.11 : x
  2. Step 2: Convert to fraction form
    75,561.15/113,791.62 = 65,818.11/x
  3. Step 3: Cross multiply
    75,561.15x = 113,791.62 × 65,818.11
  4. Step 4: Simplify right side
    75,561.15x = 7,489,549,362.24
  5. Step 5: Solve for x
    x = 7,489,549,362.24/75,561.15
  6. Step 6: Final answer
    x = 99,119.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.