Home / 57,709.67-86,560.18-20,270.07

Finding the Fourth Proportional to 57,709.67, 86,560.18 and 20,270.07

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Solution

The fourth proportional to 57,709.67, 86,560.18 and 20,270.07 is: 30,403.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,709.67 : 86,560.18 = 20,270.07 : x
  2. Step 2: Convert to fraction form
    57,709.67/86,560.18 = 20,270.07/x
  3. Step 3: Cross multiply
    57,709.67x = 86,560.18 × 20,270.07
  4. Step 4: Simplify right side
    57,709.67x = 1,754,580,907.81
  5. Step 5: Solve for x
    x = 1,754,580,907.81/57,709.67
  6. Step 6: Final answer
    x = 30,403.59

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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.