Home / 85,372.70-117,704.79-70,002.62

Finding the Fourth Proportional to 85,372.70, 117,704.79 and 70,002.62

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Solution

The fourth proportional to 85,372.70, 117,704.79 and 70,002.62 is: 96,513.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,372.70 : 117,704.79 = 70,002.62 : x
  2. Step 2: Convert to fraction form
    85,372.70/117,704.79 = 70,002.62/x
  3. Step 3: Cross multiply
    85,372.70x = 117,704.79 × 70,002.62
  4. Step 4: Simplify right side
    85,372.70x = 8,239,643,098.03
  5. Step 5: Solve for x
    x = 8,239,643,098.03/85,372.70
  6. Step 6: Final answer
    x = 96,513.80

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1.5x scale

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.