Home / 75,696.62-113,568.29-28,316.50

Finding the Fourth Proportional to 75,696.62, 113,568.29 and 28,316.50

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Solution

The fourth proportional to 75,696.62, 113,568.29 and 28,316.50 is: 42,483.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,696.62 : 113,568.29 = 28,316.50 : x
  2. Step 2: Convert to fraction form
    75,696.62/113,568.29 = 28,316.50/x
  3. Step 3: Cross multiply
    75,696.62x = 113,568.29 × 28,316.50
  4. Step 4: Simplify right side
    75,696.62x = 3,215,856,483.79
  5. Step 5: Solve for x
    x = 3,215,856,483.79/75,696.62
  6. Step 6: Final answer
    x = 42,483.49

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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.