Home / 40,935.81-61,289.83-20,902.03

Finding the Fourth Proportional to 40,935.81, 61,289.83 and 20,902.03

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Solution

The fourth proportional to 40,935.81, 61,289.83 and 20,902.03 is: 31,294.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,935.81 : 61,289.83 = 20,902.03 : x
  2. Step 2: Convert to fraction form
    40,935.81/61,289.83 = 20,902.03/x
  3. Step 3: Cross multiply
    40,935.81x = 61,289.83 × 20,902.03
  4. Step 4: Simplify right side
    40,935.81x = 1,281,082,083.01
  5. Step 5: Solve for x
    x = 1,281,082,083.01/40,935.81
  6. Step 6: Final answer
    x = 31,294.90

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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.