Home / 56,756.70-85,147.20-17,317.80

Finding the Fourth Proportional to 56,756.70, 85,147.20 and 17,317.80

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Solution

The fourth proportional to 56,756.70, 85,147.20 and 17,317.80 is: 25,980.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,756.70 : 85,147.20 = 17,317.80 : x
  2. Step 2: Convert to fraction form
    56,756.70/85,147.20 = 17,317.80/x
  3. Step 3: Cross multiply
    56,756.70x = 85,147.20 × 17,317.80
  4. Step 4: Simplify right side
    56,756.70x = 1,474,562,180.16
  5. Step 5: Solve for x
    x = 1,474,562,180.16/56,756.70
  6. Step 6: Final answer
    x = 25,980.41

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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.