Home / 75,275.91-103,851.09-43,438.65

Finding the Fourth Proportional to 75,275.91, 103,851.09 and 43,438.65

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Solution

The fourth proportional to 75,275.91, 103,851.09 and 43,438.65 is: 59,928.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,275.91 : 103,851.09 = 43,438.65 : x
  2. Step 2: Convert to fraction form
    75,275.91/103,851.09 = 43,438.65/x
  3. Step 3: Cross multiply
    75,275.91x = 103,851.09 × 43,438.65
  4. Step 4: Simplify right side
    75,275.91x = 4,511,151,150.63
  5. Step 5: Solve for x
    x = 4,511,151,150.63/75,275.91
  6. Step 6: Final answer
    x = 59,928.22

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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.