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Finding the Fourth Proportional to 67,660.68, 101,520.18 and 28,225.56

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Solution

The fourth proportional to 67,660.68, 101,520.18 and 28,225.56 is: 42,350.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,660.68 : 101,520.18 = 28,225.56 : x
  2. Step 2: Convert to fraction form
    67,660.68/101,520.18 = 28,225.56/x
  3. Step 3: Cross multiply
    67,660.68x = 101,520.18 × 28,225.56
  4. Step 4: Simplify right side
    67,660.68x = 2,865,463,931.80
  5. Step 5: Solve for x
    x = 2,865,463,931.80/67,660.68
  6. Step 6: Final answer
    x = 42,350.50

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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.