Home / 57,238.89-85,907.75-39,721.02

Finding the Fourth Proportional to 57,238.89, 85,907.75 and 39,721.02

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Solution

The fourth proportional to 57,238.89, 85,907.75 and 39,721.02 is: 59,615.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,238.89 : 85,907.75 = 39,721.02 : x
  2. Step 2: Convert to fraction form
    57,238.89/85,907.75 = 39,721.02/x
  3. Step 3: Cross multiply
    57,238.89x = 85,907.75 × 39,721.02
  4. Step 4: Simplify right side
    57,238.89x = 3,412,343,257.30
  5. Step 5: Solve for x
    x = 3,412,343,257.30/57,238.89
  6. Step 6: Final answer
    x = 59,615.82

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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.