Home / 71,948.37-99,289.35-40,119.42

Finding the Fourth Proportional to 71,948.37, 99,289.35 and 40,119.42

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Solution

The fourth proportional to 71,948.37, 99,289.35 and 40,119.42 is: 55,365.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,948.37 : 99,289.35 = 40,119.42 : x
  2. Step 2: Convert to fraction form
    71,948.37/99,289.35 = 40,119.42/x
  3. Step 3: Cross multiply
    71,948.37x = 99,289.35 × 40,119.42
  4. Step 4: Simplify right side
    71,948.37x = 3,983,431,134.18
  5. Step 5: Solve for x
    x = 3,983,431,134.18/71,948.37
  6. Step 6: Final answer
    x = 55,365.13

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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.