Home / 75,419.91-104,080.85-41,431.50

Finding the Fourth Proportional to 75,419.91, 104,080.85 and 41,431.50

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Solution

The fourth proportional to 75,419.91, 104,080.85 and 41,431.50 is: 57,176.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,419.91 : 104,080.85 = 41,431.50 : x
  2. Step 2: Convert to fraction form
    75,419.91/104,080.85 = 41,431.50/x
  3. Step 3: Cross multiply
    75,419.91x = 104,080.85 × 41,431.50
  4. Step 4: Simplify right side
    75,419.91x = 4,312,225,684.99
  5. Step 5: Solve for x
    x = 4,312,225,684.99/75,419.91
  6. Step 6: Final answer
    x = 57,176.22

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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.