Home / 57,710.67-86,561.68-20,271.07

Finding the Fourth Proportional to 57,710.67, 86,561.68 and 20,271.07

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Solution

The fourth proportional to 57,710.67, 86,561.68 and 20,271.07 is: 30,405.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,710.67 : 86,561.68 = 20,271.07 : x
  2. Step 2: Convert to fraction form
    57,710.67/86,561.68 = 20,271.07/x
  3. Step 3: Cross multiply
    57,710.67x = 86,561.68 × 20,271.07
  4. Step 4: Simplify right side
    57,710.67x = 1,754,697,874.60
  5. Step 5: Solve for x
    x = 1,754,697,874.60/57,710.67
  6. Step 6: Final answer
    x = 30,405.09

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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.