Home / 42,751.62-64,140.39-30,295.74

Finding the Fourth Proportional to 42,751.62, 64,140.39 and 30,295.74

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Solution

The fourth proportional to 42,751.62, 64,140.39 and 30,295.74 is: 45,452.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,751.62 : 64,140.39 = 30,295.74 : x
  2. Step 2: Convert to fraction form
    42,751.62/64,140.39 = 30,295.74/x
  3. Step 3: Cross multiply
    42,751.62x = 64,140.39 × 30,295.74
  4. Step 4: Simplify right side
    42,751.62x = 1,943,180,578.94
  5. Step 5: Solve for x
    x = 1,943,180,578.94/42,751.62
  6. Step 6: Final answer
    x = 45,452.79

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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.