Home / 85,644.18-118,189.26-47,916

Finding the Fourth Proportional to 85,644.18, 118,189.26 and 47,916

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Solution

The fourth proportional to 85,644.18, 118,189.26 and 47,916 is: 66,124.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,644.18 : 118,189.26 = 47,916 : x
  2. Step 2: Convert to fraction form
    85,644.18/118,189.26 = 47,916/x
  3. Step 3: Cross multiply
    85,644.18x = 118,189.26 × 47,916
  4. Step 4: Simplify right side
    85,644.18x = 5,663,156,582.16
  5. Step 5: Solve for x
    x = 5,663,156,582.16/85,644.18
  6. Step 6: Final answer
    x = 66,124.24

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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.