Home / 57,985.29-86,972.46-18,531.81

Finding the Fourth Proportional to 57,985.29, 86,972.46 and 18,531.81

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Solution

The fourth proportional to 57,985.29, 86,972.46 and 18,531.81 is: 27,795.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,985.29 : 86,972.46 = 18,531.81 : x
  2. Step 2: Convert to fraction form
    57,985.29/86,972.46 = 18,531.81/x
  3. Step 3: Cross multiply
    57,985.29x = 86,972.46 × 18,531.81
  4. Step 4: Simplify right side
    57,985.29x = 1,611,757,331.19
  5. Step 5: Solve for x
    x = 1,611,757,331.19/57,985.29
  6. Step 6: Final answer
    x = 27,795.97

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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.