Home / 56,902.26-78,515.72-31,751.70

Finding the Fourth Proportional to 56,902.26, 78,515.72 and 31,751.70

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Solution

The fourth proportional to 56,902.26, 78,515.72 and 31,751.70 is: 43,812.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,902.26 : 78,515.72 = 31,751.70 : x
  2. Step 2: Convert to fraction form
    56,902.26/78,515.72 = 31,751.70/x
  3. Step 3: Cross multiply
    56,902.26x = 78,515.72 × 31,751.70
  4. Step 4: Simplify right side
    56,902.26x = 2,493,007,586.72
  5. Step 5: Solve for x
    x = 2,493,007,586.72/56,902.26
  6. Step 6: Final answer
    x = 43,812.10

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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.