Home / 85,302.34-117,679.05-49,471.53

Finding the Fourth Proportional to 85,302.34, 117,679.05 and 49,471.53

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Solution

The fourth proportional to 85,302.34, 117,679.05 and 49,471.53 is: 68,248.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,302.34 : 117,679.05 = 49,471.53 : x
  2. Step 2: Convert to fraction form
    85,302.34/117,679.05 = 49,471.53/x
  3. Step 3: Cross multiply
    85,302.34x = 117,679.05 × 49,471.53
  4. Step 4: Simplify right side
    85,302.34x = 5,821,763,343.21
  5. Step 5: Solve for x
    x = 5,821,763,343.21/85,302.34
  6. Step 6: Final answer
    x = 68,248.58

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.