Home / 70,161.10-105,283.18-25,819

Finding the Fourth Proportional to 70,161.10, 105,283.18 and 25,819

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Solution

The fourth proportional to 70,161.10, 105,283.18 and 25,819 is: 38,743.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,161.10 : 105,283.18 = 25,819 : x
  2. Step 2: Convert to fraction form
    70,161.10/105,283.18 = 25,819/x
  3. Step 3: Cross multiply
    70,161.10x = 105,283.18 × 25,819
  4. Step 4: Simplify right side
    70,161.10x = 2,718,306,424.42
  5. Step 5: Solve for x
    x = 2,718,306,424.42/70,161.10
  6. Step 6: Final answer
    x = 38,743.78

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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.