Home / 75,728.40-113,592.60-36,265.20

Finding the Fourth Proportional to 75,728.40, 113,592.60 and 36,265.20

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Solution

The fourth proportional to 75,728.40, 113,592.60 and 36,265.20 is: 54,397.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,728.40 : 113,592.60 = 36,265.20 : x
  2. Step 2: Convert to fraction form
    75,728.40/113,592.60 = 36,265.20/x
  3. Step 3: Cross multiply
    75,728.40x = 113,592.60 × 36,265.20
  4. Step 4: Simplify right side
    75,728.40x = 4,119,458,357.52
  5. Step 5: Solve for x
    x = 4,119,458,357.52/75,728.40
  6. Step 6: Final answer
    x = 54,397.80

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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.