Home / 69,090.48-103,686.96-51,362.16

Finding the Fourth Proportional to 69,090.48, 103,686.96 and 51,362.16

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Solution

The fourth proportional to 69,090.48, 103,686.96 and 51,362.16 is: 77,081.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,090.48 : 103,686.96 = 51,362.16 : x
  2. Step 2: Convert to fraction form
    69,090.48/103,686.96 = 51,362.16/x
  3. Step 3: Cross multiply
    69,090.48x = 103,686.96 × 51,362.16
  4. Step 4: Simplify right side
    69,090.48x = 5,325,586,229.43
  5. Step 5: Solve for x
    x = 5,325,586,229.43/69,090.48
  6. Step 6: Final answer
    x = 77,081.33

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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.