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Finding the Fourth Proportional to 85,399.38, 128,110.01 and 32,802.03

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Solution

The fourth proportional to 85,399.38, 128,110.01 and 32,802.03 is: 49,207.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,399.38 : 128,110.01 = 32,802.03 : x
  2. Step 2: Convert to fraction form
    85,399.38/128,110.01 = 32,802.03/x
  3. Step 3: Cross multiply
    85,399.38x = 128,110.01 × 32,802.03
  4. Step 4: Simplify right side
    85,399.38x = 4,202,268,227.31
  5. Step 5: Solve for x
    x = 4,202,268,227.31/85,399.38
  6. Step 6: Final answer
    x = 49,207.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.