Home / 75,282.31-103,888.88-41,290.10

Finding the Fourth Proportional to 75,282.31, 103,888.88 and 41,290.10

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Solution

The fourth proportional to 75,282.31, 103,888.88 and 41,290.10 is: 56,979.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,282.31 : 103,888.88 = 41,290.10 : x
  2. Step 2: Convert to fraction form
    75,282.31/103,888.88 = 41,290.10/x
  3. Step 3: Cross multiply
    75,282.31x = 103,888.88 × 41,290.10
  4. Step 4: Simplify right side
    75,282.31x = 4,289,582,646.99
  5. Step 5: Solve for x
    x = 4,289,582,646.99/75,282.31
  6. Step 6: Final answer
    x = 56,979.95

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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.