Home / 71,140.24-106,722.60-31,696.48

Finding the Fourth Proportional to 71,140.24, 106,722.60 and 31,696.48

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Solution

The fourth proportional to 71,140.24, 106,722.60 and 31,696.48 is: 47,550.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,140.24 : 106,722.60 = 31,696.48 : x
  2. Step 2: Convert to fraction form
    71,140.24/106,722.60 = 31,696.48/x
  3. Step 3: Cross multiply
    71,140.24x = 106,722.60 × 31,696.48
  4. Step 4: Simplify right side
    71,140.24x = 3,382,730,756.45
  5. Step 5: Solve for x
    x = 3,382,730,756.45/71,140.24
  6. Step 6: Final answer
    x = 47,550.17

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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.