Home / 80,931.26-121,420.58-41,515.85

Finding the Fourth Proportional to 80,931.26, 121,420.58 and 41,515.85

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Solution

The fourth proportional to 80,931.26, 121,420.58 and 41,515.85 is: 62,285.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,931.26 : 121,420.58 = 41,515.85 : x
  2. Step 2: Convert to fraction form
    80,931.26/121,420.58 = 41,515.85/x
  3. Step 3: Cross multiply
    80,931.26x = 121,420.58 × 41,515.85
  4. Step 4: Simplify right side
    80,931.26x = 5,040,878,586.19
  5. Step 5: Solve for x
    x = 5,040,878,586.19/80,931.26
  6. Step 6: Final answer
    x = 62,285.93

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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.