Home / 75,135.77-103,687.36-43,306.72

Finding the Fourth Proportional to 75,135.77, 103,687.36 and 43,306.72

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Solution

The fourth proportional to 75,135.77, 103,687.36 and 43,306.72 is: 59,763.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,135.77 : 103,687.36 = 43,306.72 : x
  2. Step 2: Convert to fraction form
    75,135.77/103,687.36 = 43,306.72/x
  3. Step 3: Cross multiply
    75,135.77x = 103,687.36 × 43,306.72
  4. Step 4: Simplify right side
    75,135.77x = 4,490,359,467.06
  5. Step 5: Solve for x
    x = 4,490,359,467.06/75,135.77
  6. Step 6: Final answer
    x = 59,763.27

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.