Home / 75,327.60-113,036.20-28,585.20

Finding the Fourth Proportional to 75,327.60, 113,036.20 and 28,585.20

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Solution

The fourth proportional to 75,327.60, 113,036.20 and 28,585.20 is: 42,894.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,327.60 : 113,036.20 = 28,585.20 : x
  2. Step 2: Convert to fraction form
    75,327.60/113,036.20 = 28,585.20/x
  3. Step 3: Cross multiply
    75,327.60x = 113,036.20 × 28,585.20
  4. Step 4: Simplify right side
    75,327.60x = 3,231,162,384.24
  5. Step 5: Solve for x
    x = 3,231,162,384.24/75,327.60
  6. Step 6: Final answer
    x = 42,894.80

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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.