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Finding the Fourth Proportional to 75,462.76, 104,143.08 and 43,642.72

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Solution

The fourth proportional to 75,462.76, 104,143.08 and 43,642.72 is: 60,229.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,462.76 : 104,143.08 = 43,642.72 : x
  2. Step 2: Convert to fraction form
    75,462.76/104,143.08 = 43,642.72/x
  3. Step 3: Cross multiply
    75,462.76x = 104,143.08 × 43,642.72
  4. Step 4: Simplify right side
    75,462.76x = 4,545,087,280.38
  5. Step 5: Solve for x
    x = 4,545,087,280.38/75,462.76
  6. Step 6: Final answer
    x = 60,229.54

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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.