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Finding the Fourth Proportional to 67,977.30, 101,801.87 and 40,881.72

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Solution

The fourth proportional to 67,977.30, 101,801.87 and 40,881.72 is: 61,223.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,977.30 : 101,801.87 = 40,881.72 : x
  2. Step 2: Convert to fraction form
    67,977.30/101,801.87 = 40,881.72/x
  3. Step 3: Cross multiply
    67,977.30x = 101,801.87 × 40,881.72
  4. Step 4: Simplify right side
    67,977.30x = 4,161,835,340.41
  5. Step 5: Solve for x
    x = 4,161,835,340.41/67,977.30
  6. Step 6: Final answer
    x = 61,223.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.