Home / 57,871.56-86,717.59-40,136.82

Finding the Fourth Proportional to 57,871.56, 86,717.59 and 40,136.82

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Solution

The fourth proportional to 57,871.56, 86,717.59 and 40,136.82 is: 60,142.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,871.56 : 86,717.59 = 40,136.82 : x
  2. Step 2: Convert to fraction form
    57,871.56/86,717.59 = 40,136.82/x
  3. Step 3: Cross multiply
    57,871.56x = 86,717.59 × 40,136.82
  4. Step 4: Simplify right side
    57,871.56x = 3,480,567,875.13
  5. Step 5: Solve for x
    x = 3,480,567,875.13/57,871.56
  6. Step 6: Final answer
    x = 60,142.97

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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.