Home / 57,721.56-86,681.16-35,665.80

Finding the Fourth Proportional to 57,721.56, 86,681.16 and 35,665.80

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Solution

The fourth proportional to 57,721.56, 86,681.16 and 35,665.80 is: 53,559.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,721.56 : 86,681.16 = 35,665.80 : x
  2. Step 2: Convert to fraction form
    57,721.56/86,681.16 = 35,665.80/x
  3. Step 3: Cross multiply
    57,721.56x = 86,681.16 × 35,665.80
  4. Step 4: Simplify right side
    57,721.56x = 3,091,552,916.33
  5. Step 5: Solve for x
    x = 3,091,552,916.33/57,721.56
  6. Step 6: Final answer
    x = 53,559.76

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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.