Home / 85,172.72-127,667.34-40,704.93

Finding the Fourth Proportional to 85,172.72, 127,667.34 and 40,704.93

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Solution

The fourth proportional to 85,172.72, 127,667.34 and 40,704.93 is: 61,013.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,172.72 : 127,667.34 = 40,704.93 : x
  2. Step 2: Convert to fraction form
    85,172.72/127,667.34 = 40,704.93/x
  3. Step 3: Cross multiply
    85,172.72x = 127,667.34 × 40,704.93
  4. Step 4: Simplify right side
    85,172.72x = 5,196,690,137.99
  5. Step 5: Solve for x
    x = 5,196,690,137.99/85,172.72
  6. Step 6: Final answer
    x = 61,013.56

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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.