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Finding the Fourth Proportional to 85,553.96, 118,064.81 and 47,828.21

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Solution

The fourth proportional to 85,553.96, 118,064.81 and 47,828.21 is: 66,003.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,553.96 : 118,064.81 = 47,828.21 : x
  2. Step 2: Convert to fraction form
    85,553.96/118,064.81 = 47,828.21/x
  3. Step 3: Cross multiply
    85,553.96x = 118,064.81 × 47,828.21
  4. Step 4: Simplify right side
    85,553.96x = 5,646,828,287.15
  5. Step 5: Solve for x
    x = 5,646,828,287.15/85,553.96
  6. Step 6: Final answer
    x = 66,003.12

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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.