Home / 75,432.50-113,163.32-28,681.74

Finding the Fourth Proportional to 75,432.50, 113,163.32 and 28,681.74

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Solution

The fourth proportional to 75,432.50, 113,163.32 and 28,681.74 is: 43,028.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,432.50 : 113,163.32 = 28,681.74 : x
  2. Step 2: Convert to fraction form
    75,432.50/113,163.32 = 28,681.74/x
  3. Step 3: Cross multiply
    75,432.50x = 113,163.32 × 28,681.74
  4. Step 4: Simplify right side
    75,432.50x = 3,245,720,921.78
  5. Step 5: Solve for x
    x = 3,245,720,921.78/75,432.50
  6. Step 6: Final answer
    x = 43,028.15

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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.