Home / 69,169.19-95,455.40-42,311.21

Finding the Fourth Proportional to 69,169.19, 95,455.40 and 42,311.21

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Solution

The fourth proportional to 69,169.19, 95,455.40 and 42,311.21 is: 58,390.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,169.19 : 95,455.40 = 42,311.21 : x
  2. Step 2: Convert to fraction form
    69,169.19/95,455.40 = 42,311.21/x
  3. Step 3: Cross multiply
    69,169.19x = 95,455.40 × 42,311.21
  4. Step 4: Simplify right side
    69,169.19x = 4,038,832,786.20
  5. Step 5: Solve for x
    x = 4,038,832,786.20/69,169.19
  6. Step 6: Final answer
    x = 58,390.64

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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.