Home / 57,209.49-85,819.93-21,195.59

Finding the Fourth Proportional to 57,209.49, 85,819.93 and 21,195.59

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Solution

The fourth proportional to 57,209.49, 85,819.93 and 21,195.59 is: 31,795.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,209.49 : 85,819.93 = 21,195.59 : x
  2. Step 2: Convert to fraction form
    57,209.49/85,819.93 = 21,195.59/x
  3. Step 3: Cross multiply
    57,209.49x = 85,819.93 × 21,195.59
  4. Step 4: Simplify right side
    57,209.49x = 1,819,003,568.02
  5. Step 5: Solve for x
    x = 1,819,003,568.02/57,209.49
  6. Step 6: Final answer
    x = 31,795.49

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1.5x scale

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.