Home / 75,670.20-113,466.42-40,639.32

Finding the Fourth Proportional to 75,670.20, 113,466.42 and 40,639.32

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Solution

The fourth proportional to 75,670.20, 113,466.42 and 40,639.32 is: 60,938.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,670.20 : 113,466.42 = 40,639.32 : x
  2. Step 2: Convert to fraction form
    75,670.20/113,466.42 = 40,639.32/x
  3. Step 3: Cross multiply
    75,670.20x = 113,466.42 × 40,639.32
  4. Step 4: Simplify right side
    75,670.20x = 4,611,198,151.63
  5. Step 5: Solve for x
    x = 4,611,198,151.63/75,670.20
  6. Step 6: Final answer
    x = 60,938.10

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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.