Home / 66,335.63-91,543.17-36,120.94

Finding the Fourth Proportional to 66,335.63, 91,543.17 and 36,120.94

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Solution

The fourth proportional to 66,335.63, 91,543.17 and 36,120.94 is: 49,846.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,335.63 : 91,543.17 = 36,120.94 : x
  2. Step 2: Convert to fraction form
    66,335.63/91,543.17 = 36,120.94/x
  3. Step 3: Cross multiply
    66,335.63x = 91,543.17 × 36,120.94
  4. Step 4: Simplify right side
    66,335.63x = 3,306,625,600.86
  5. Step 5: Solve for x
    x = 3,306,625,600.86/66,335.63
  6. Step 6: Final answer
    x = 49,846.90

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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.