Home / 57,429.50-86,144.26-17,989.69

Finding the Fourth Proportional to 57,429.50, 86,144.26 and 17,989.69

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Solution

The fourth proportional to 57,429.50, 86,144.26 and 17,989.69 is: 26,984.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,429.50 : 86,144.26 = 17,989.69 : x
  2. Step 2: Convert to fraction form
    57,429.50/86,144.26 = 17,989.69/x
  3. Step 3: Cross multiply
    57,429.50x = 86,144.26 × 17,989.69
  4. Step 4: Simplify right side
    57,429.50x = 1,549,708,272.34
  5. Step 5: Solve for x
    x = 1,549,708,272.34/57,429.50
  6. Step 6: Final answer
    x = 26,984.53

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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.