Home / 84,241.26-126,319.64-28,061.62

Finding the Fourth Proportional to 84,241.26, 126,319.64 and 28,061.62

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Solution

The fourth proportional to 84,241.26, 126,319.64 and 28,061.62 is: 42,078.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,241.26 : 126,319.64 = 28,061.62 : x
  2. Step 2: Convert to fraction form
    84,241.26/126,319.64 = 28,061.62/x
  3. Step 3: Cross multiply
    84,241.26x = 126,319.64 × 28,061.62
  4. Step 4: Simplify right side
    84,241.26x = 3,544,733,280.11
  5. Step 5: Solve for x
    x = 3,544,733,280.11/84,241.26
  6. Step 6: Final answer
    x = 42,078.35

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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.