Home / 67,899.20-102,002.40-47,163.20

Finding the Fourth Proportional to 67,899.20, 102,002.40 and 47,163.20

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Solution

The fourth proportional to 67,899.20, 102,002.40 and 47,163.20 is: 70,851.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,899.20 : 102,002.40 = 47,163.20 : x
  2. Step 2: Convert to fraction form
    67,899.20/102,002.40 = 47,163.20/x
  3. Step 3: Cross multiply
    67,899.20x = 102,002.40 × 47,163.20
  4. Step 4: Simplify right side
    67,899.20x = 4,810,759,591.68
  5. Step 5: Solve for x
    x = 4,810,759,591.68/67,899.20
  6. Step 6: Final answer
    x = 70,851.49

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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.