Home / 57,709.42-86,559.81-20,269.82

Finding the Fourth Proportional to 57,709.42, 86,559.81 and 20,269.82

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Solution

The fourth proportional to 57,709.42, 86,559.81 and 20,269.82 is: 30,403.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,709.42 : 86,559.81 = 20,269.82 : x
  2. Step 2: Convert to fraction form
    57,709.42/86,559.81 = 20,269.82/x
  3. Step 3: Cross multiply
    57,709.42x = 86,559.81 × 20,269.82
  4. Step 4: Simplify right side
    57,709.42x = 1,754,551,666.59
  5. Step 5: Solve for x
    x = 1,754,551,666.59/57,709.42
  6. Step 6: Final answer
    x = 30,403.21

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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.