Home / 75,425.12-113,181.20-40,384.32

Finding the Fourth Proportional to 75,425.12, 113,181.20 and 40,384.32

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Solution

The fourth proportional to 75,425.12, 113,181.20 and 40,384.32 is: 60,599.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,425.12 : 113,181.20 = 40,384.32 : x
  2. Step 2: Convert to fraction form
    75,425.12/113,181.20 = 40,384.32/x
  3. Step 3: Cross multiply
    75,425.12x = 113,181.20 × 40,384.32
  4. Step 4: Simplify right side
    75,425.12x = 4,570,745,798.78
  5. Step 5: Solve for x
    x = 4,570,745,798.78/75,425.12
  6. Step 6: Final answer
    x = 60,599.78

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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.