Home / 71,712.30-107,303.10-43,265.75

Finding the Fourth Proportional to 71,712.30, 107,303.10 and 43,265.75

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Solution

The fourth proportional to 71,712.30, 107,303.10 and 43,265.75 is: 64,738.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,712.30 : 107,303.10 = 43,265.75 : x
  2. Step 2: Convert to fraction form
    71,712.30/107,303.10 = 43,265.75/x
  3. Step 3: Cross multiply
    71,712.30x = 107,303.10 × 43,265.75
  4. Step 4: Simplify right side
    71,712.30x = 4,642,548,400.06
  5. Step 5: Solve for x
    x = 4,642,548,400.06/71,712.30
  6. Step 6: Final answer
    x = 64,738.52

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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.