Home / 75,240.72-103,843.08-43,403.28

Finding the Fourth Proportional to 75,240.72, 103,843.08 and 43,403.28

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Solution

The fourth proportional to 75,240.72, 103,843.08 and 43,403.28 is: 59,902.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,240.72 : 103,843.08 = 43,403.28 : x
  2. Step 2: Convert to fraction form
    75,240.72/103,843.08 = 43,403.28/x
  3. Step 3: Cross multiply
    75,240.72x = 103,843.08 × 43,403.28
  4. Step 4: Simplify right side
    75,240.72x = 4,507,130,277.30
  5. Step 5: Solve for x
    x = 4,507,130,277.30/75,240.72
  6. Step 6: Final answer
    x = 59,902.81

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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.