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Finding the Fourth Proportional to 66,161.92, 91,240.86 and 43,460.86

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Solution

The fourth proportional to 66,161.92, 91,240.86 and 43,460.86 is: 59,934.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,161.92 : 91,240.86 = 43,460.86 : x
  2. Step 2: Convert to fraction form
    66,161.92/91,240.86 = 43,460.86/x
  3. Step 3: Cross multiply
    66,161.92x = 91,240.86 × 43,460.86
  4. Step 4: Simplify right side
    66,161.92x = 3,965,406,242.74
  5. Step 5: Solve for x
    x = 3,965,406,242.74/66,161.92
  6. Step 6: Final answer
    x = 59,934.87

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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.