Home / 68,348.42-102,513.63-20,316.00

Finding the Fourth Proportional to 68,348.42, 102,513.63 and 20,316.00

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Solution

The fourth proportional to 68,348.42, 102,513.63 and 20,316.00 is: 30,471.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,348.42 : 102,513.63 = 20,316.00 : x
  2. Step 2: Convert to fraction form
    68,348.42/102,513.63 = 20,316.00/x
  3. Step 3: Cross multiply
    68,348.42x = 102,513.63 × 20,316.00
  4. Step 4: Simplify right side
    68,348.42x = 2,082,667,061.78
  5. Step 5: Solve for x
    x = 2,082,667,061.78/68,348.42
  6. Step 6: Final answer
    x = 30,471.33

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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.