Home / 75,824.91-113,704.43-40,278.40

Finding the Fourth Proportional to 75,824.91, 113,704.43 and 40,278.40

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Solution

The fourth proportional to 75,824.91, 113,704.43 and 40,278.40 is: 60,400.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,824.91 : 113,704.43 = 40,278.40 : x
  2. Step 2: Convert to fraction form
    75,824.91/113,704.43 = 40,278.40/x
  3. Step 3: Cross multiply
    75,824.91x = 113,704.43 × 40,278.40
  4. Step 4: Simplify right side
    75,824.91x = 4,579,832,027.66
  5. Step 5: Solve for x
    x = 4,579,832,027.66/75,824.91
  6. Step 6: Final answer
    x = 60,400.10

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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.