Home / 71,128.57-106,708.73-26,755.69

Finding the Fourth Proportional to 71,128.57, 106,708.73 and 26,755.69

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Solution

The fourth proportional to 71,128.57, 106,708.73 and 26,755.69 is: 40,139.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,128.57 : 106,708.73 = 26,755.69 : x
  2. Step 2: Convert to fraction form
    71,128.57/106,708.73 = 26,755.69/x
  3. Step 3: Cross multiply
    71,128.57x = 106,708.73 × 26,755.69
  4. Step 4: Simplify right side
    71,128.57x = 2,855,065,700.17
  5. Step 5: Solve for x
    x = 2,855,065,700.17/71,128.57
  6. Step 6: Final answer
    x = 40,139.51

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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.