Home / 79,902.10-119,836.35-40,422.10

Finding the Fourth Proportional to 79,902.10, 119,836.35 and 40,422.10

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Solution

The fourth proportional to 79,902.10, 119,836.35 and 40,422.10 is: 60,624.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,902.10 : 119,836.35 = 40,422.10 : x
  2. Step 2: Convert to fraction form
    79,902.10/119,836.35 = 40,422.10/x
  3. Step 3: Cross multiply
    79,902.10x = 119,836.35 × 40,422.10
  4. Step 4: Simplify right side
    79,902.10x = 4,844,036,923.34
  5. Step 5: Solve for x
    x = 4,844,036,923.34/79,902.10
  6. Step 6: Final answer
    x = 60,624.65

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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.