Home / 61,379.28-91,993.54-31,780.24

Finding the Fourth Proportional to 61,379.28, 91,993.54 and 31,780.24

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Solution

The fourth proportional to 61,379.28, 91,993.54 and 31,780.24 is: 47,631.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,379.28 : 91,993.54 = 31,780.24 : x
  2. Step 2: Convert to fraction form
    61,379.28/91,993.54 = 31,780.24/x
  3. Step 3: Cross multiply
    61,379.28x = 91,993.54 × 31,780.24
  4. Step 4: Simplify right side
    61,379.28x = 2,923,576,779.65
  5. Step 5: Solve for x
    x = 2,923,576,779.65/61,379.28
  6. Step 6: Final answer
    x = 47,631.33

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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.