Home / 75,190.05-112,662.02-45,517.95

Finding the Fourth Proportional to 75,190.05, 112,662.02 and 45,517.95

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Solution

The fourth proportional to 75,190.05, 112,662.02 and 45,517.95 is: 68,202.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,190.05 : 112,662.02 = 45,517.95 : x
  2. Step 2: Convert to fraction form
    75,190.05/112,662.02 = 45,517.95/x
  3. Step 3: Cross multiply
    75,190.05x = 112,662.02 × 45,517.95
  4. Step 4: Simplify right side
    75,190.05x = 5,128,144,307.05
  5. Step 5: Solve for x
    x = 5,128,144,307.05/75,190.05
  6. Step 6: Final answer
    x = 68,202.43

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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.