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Finding the Fourth Proportional to 67,124.36, 100,895.76 and 42,323.78

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Solution

The fourth proportional to 67,124.36, 100,895.76 and 42,323.78 is: 63,617.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,124.36 : 100,895.76 = 42,323.78 : x
  2. Step 2: Convert to fraction form
    67,124.36/100,895.76 = 42,323.78/x
  3. Step 3: Cross multiply
    67,124.36x = 100,895.76 × 42,323.78
  4. Step 4: Simplify right side
    67,124.36x = 4,270,290,201.41
  5. Step 5: Solve for x
    x = 4,270,290,201.41/67,124.36
  6. Step 6: Final answer
    x = 63,617.59

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1.5x scale

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.