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Finding the Fourth Proportional to 67,247.44, 92,801.74 and 40,390.40

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Solution

The fourth proportional to 67,247.44, 92,801.74 and 40,390.40 is: 55,738.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,247.44 : 92,801.74 = 40,390.40 : x
  2. Step 2: Convert to fraction form
    67,247.44/92,801.74 = 40,390.40/x
  3. Step 3: Cross multiply
    67,247.44x = 92,801.74 × 40,390.40
  4. Step 4: Simplify right side
    67,247.44x = 3,748,299,399.30
  5. Step 5: Solve for x
    x = 3,748,299,399.30/67,247.44
  6. Step 6: Final answer
    x = 55,738.92

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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.