Home / 85,272.49-117,658.06-61,452.01

Finding the Fourth Proportional to 85,272.49, 117,658.06 and 61,452.01

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Solution

The fourth proportional to 85,272.49, 117,658.06 and 61,452.01 is: 84,790.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,272.49 : 117,658.06 = 61,452.01 : x
  2. Step 2: Convert to fraction form
    85,272.49/117,658.06 = 61,452.01/x
  3. Step 3: Cross multiply
    85,272.49x = 117,658.06 × 61,452.01
  4. Step 4: Simplify right side
    85,272.49x = 7,230,324,279.70
  5. Step 5: Solve for x
    x = 7,230,324,279.70/85,272.49
  6. Step 6: Final answer
    x = 84,790.82

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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.