Home / 57,208.93-85,819.08-21,195.02

Finding the Fourth Proportional to 57,208.93, 85,819.08 and 21,195.02

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Solution

The fourth proportional to 57,208.93, 85,819.08 and 21,195.02 is: 31,794.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,208.93 : 85,819.08 = 21,195.02 : x
  2. Step 2: Convert to fraction form
    57,208.93/85,819.08 = 21,195.02/x
  3. Step 3: Cross multiply
    57,208.93x = 85,819.08 × 21,195.02
  4. Step 4: Simplify right side
    57,208.93x = 1,818,936,809.06
  5. Step 5: Solve for x
    x = 1,818,936,809.06/57,208.93
  6. Step 6: Final answer
    x = 31,794.63

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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.