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Finding the Fourth Proportional to 85,549.44, 118,039.68 and 47,822.40

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Solution

The fourth proportional to 85,549.44, 118,039.68 and 47,822.40 is: 65,984.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,549.44 : 118,039.68 = 47,822.40 : x
  2. Step 2: Convert to fraction form
    85,549.44/118,039.68 = 47,822.40/x
  3. Step 3: Cross multiply
    85,549.44x = 118,039.68 × 47,822.40
  4. Step 4: Simplify right side
    85,549.44x = 5,644,940,792.83
  5. Step 5: Solve for x
    x = 5,644,940,792.83/85,549.44
  6. Step 6: Final answer
    x = 65,984.54

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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.