Home / 87,147.49-120,253.65-48,902.03

Finding the Fourth Proportional to 87,147.49, 120,253.65 and 48,902.03

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Solution

The fourth proportional to 87,147.49, 120,253.65 and 48,902.03 is: 67,479.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,147.49 : 120,253.65 = 48,902.03 : x
  2. Step 2: Convert to fraction form
    87,147.49/120,253.65 = 48,902.03/x
  3. Step 3: Cross multiply
    87,147.49x = 120,253.65 × 48,902.03
  4. Step 4: Simplify right side
    87,147.49x = 5,880,647,599.91
  5. Step 5: Solve for x
    x = 5,880,647,599.91/87,147.49
  6. Step 6: Final answer
    x = 67,479.25

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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.