Home / 71,011.24-105,976.85-63,138.28

Finding the Fourth Proportional to 71,011.24, 105,976.85 and 63,138.28

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Solution

The fourth proportional to 71,011.24, 105,976.85 and 63,138.28 is: 94,227.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,011.24 : 105,976.85 = 63,138.28 : x
  2. Step 2: Convert to fraction form
    71,011.24/105,976.85 = 63,138.28/x
  3. Step 3: Cross multiply
    71,011.24x = 105,976.85 × 63,138.28
  4. Step 4: Simplify right side
    71,011.24x = 6,691,196,028.82
  5. Step 5: Solve for x
    x = 6,691,196,028.82/71,011.24
  6. Step 6: Final answer
    x = 94,227.28

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.