Home / 52,863.20-79,294.80-40,421.60

Finding the Fourth Proportional to 52,863.20, 79,294.80 and 40,421.60

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Solution

The fourth proportional to 52,863.20, 79,294.80 and 40,421.60 is: 60,632.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,863.20 : 79,294.80 = 40,421.60 : x
  2. Step 2: Convert to fraction form
    52,863.20/79,294.80 = 40,421.60/x
  3. Step 3: Cross multiply
    52,863.20x = 79,294.80 × 40,421.60
  4. Step 4: Simplify right side
    52,863.20x = 3,205,222,687.68
  5. Step 5: Solve for x
    x = 3,205,222,687.68/52,863.20
  6. Step 6: Final answer
    x = 60,632.40

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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.