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Finding the Fourth Proportional to 67,065.52, 92,552.92 and 40,212.40

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Solution

The fourth proportional to 67,065.52, 92,552.92 and 40,212.40 is: 55,494.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,065.52 : 92,552.92 = 40,212.40 : x
  2. Step 2: Convert to fraction form
    67,065.52/92,552.92 = 40,212.40/x
  3. Step 3: Cross multiply
    67,065.52x = 92,552.92 × 40,212.40
  4. Step 4: Simplify right side
    67,065.52x = 3,721,775,040.21
  5. Step 5: Solve for x
    x = 3,721,775,040.21/67,065.52
  6. Step 6: Final answer
    x = 55,494.61

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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.