Home / 85,105.44-117,445.68-47,381.04

Finding the Fourth Proportional to 85,105.44, 117,445.68 and 47,381.04

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Solution

The fourth proportional to 85,105.44, 117,445.68 and 47,381.04 is: 65,385.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,105.44 : 117,445.68 = 47,381.04 : x
  2. Step 2: Convert to fraction form
    85,105.44/117,445.68 = 47,381.04/x
  3. Step 3: Cross multiply
    85,105.44x = 117,445.68 × 47,381.04
  4. Step 4: Simplify right side
    85,105.44x = 5,564,698,461.91
  5. Step 5: Solve for x
    x = 5,564,698,461.91/85,105.44
  6. Step 6: Final answer
    x = 65,385.93

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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.