Home / 84,414.45-126,628.38-28,254.87

Finding the Fourth Proportional to 84,414.45, 126,628.38 and 28,254.87

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Solution

The fourth proportional to 84,414.45, 126,628.38 and 28,254.87 is: 42,384.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,414.45 : 126,628.38 = 28,254.87 : x
  2. Step 2: Convert to fraction form
    84,414.45/126,628.38 = 28,254.87/x
  3. Step 3: Cross multiply
    84,414.45x = 126,628.38 × 28,254.87
  4. Step 4: Simplify right side
    84,414.45x = 3,577,868,415.21
  5. Step 5: Solve for x
    x = 3,577,868,415.21/84,414.45
  6. Step 6: Final answer
    x = 42,384.55

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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.