Home / 57,724.10-86,564.55-20,269.70

Finding the Fourth Proportional to 57,724.10, 86,564.55 and 20,269.70

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Solution

The fourth proportional to 57,724.10, 86,564.55 and 20,269.70 is: 30,396.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,724.10 : 86,564.55 = 20,269.70 : x
  2. Step 2: Convert to fraction form
    57,724.10/86,564.55 = 20,269.70/x
  3. Step 3: Cross multiply
    57,724.10x = 86,564.55 × 20,269.70
  4. Step 4: Simplify right side
    57,724.10x = 1,754,637,459.14
  5. Step 5: Solve for x
    x = 1,754,637,459.14/57,724.10
  6. Step 6: Final answer
    x = 30,396.97

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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.