Home / 85,235.27-127,839.08-40,256.57

Finding the Fourth Proportional to 85,235.27, 127,839.08 and 40,256.57

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Solution

The fourth proportional to 85,235.27, 127,839.08 and 40,256.57 is: 60,378.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,235.27 : 127,839.08 = 40,256.57 : x
  2. Step 2: Convert to fraction form
    85,235.27/127,839.08 = 40,256.57/x
  3. Step 3: Cross multiply
    85,235.27x = 127,839.08 × 40,256.57
  4. Step 4: Simplify right side
    85,235.27x = 5,146,363,066.55
  5. Step 5: Solve for x
    x = 5,146,363,066.55/85,235.27
  6. Step 6: Final answer
    x = 60,378.33

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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.