Home / 75,708.16-104,477.92-42,174.72

Finding the Fourth Proportional to 75,708.16, 104,477.92 and 42,174.72

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Solution

The fourth proportional to 75,708.16, 104,477.92 and 42,174.72 is: 58,201.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,708.16 : 104,477.92 = 42,174.72 : x
  2. Step 2: Convert to fraction form
    75,708.16/104,477.92 = 42,174.72/x
  3. Step 3: Cross multiply
    75,708.16x = 104,477.92 × 42,174.72
  4. Step 4: Simplify right side
    75,708.16x = 4,406,327,022.18
  5. Step 5: Solve for x
    x = 4,406,327,022.18/75,708.16
  6. Step 6: Final answer
    x = 58,201.48

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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.