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Finding the Fourth Proportional to 75,808.71, 113,775.03 and 53,643.47

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Solution

The fourth proportional to 75,808.71, 113,775.03 and 53,643.47 is: 80,509.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,808.71 : 113,775.03 = 53,643.47 : x
  2. Step 2: Convert to fraction form
    75,808.71/113,775.03 = 53,643.47/x
  3. Step 3: Cross multiply
    75,808.71x = 113,775.03 × 53,643.47
  4. Step 4: Simplify right side
    75,808.71x = 6,103,286,839.68
  5. Step 5: Solve for x
    x = 6,103,286,839.68/75,808.71
  6. Step 6: Final answer
    x = 80,509.04

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.