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Finding the Fourth Proportional to 85,224.31, 117,617.87 and 63,676.67

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Solution

The fourth proportional to 85,224.31, 117,617.87 and 63,676.67 is: 87,880.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,224.31 : 117,617.87 = 63,676.67 : x
  2. Step 2: Convert to fraction form
    85,224.31/117,617.87 = 63,676.67/x
  3. Step 3: Cross multiply
    85,224.31x = 117,617.87 × 63,676.67
  4. Step 4: Simplify right side
    85,224.31x = 7,489,514,294.09
  5. Step 5: Solve for x
    x = 7,489,514,294.09/85,224.31
  6. Step 6: Final answer
    x = 87,880.02

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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.