Home / 74,007.72-102,149.64-45,697.14

Finding the Fourth Proportional to 74,007.72, 102,149.64 and 45,697.14

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Solution

The fourth proportional to 74,007.72, 102,149.64 and 45,697.14 is: 63,073.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,007.72 : 102,149.64 = 45,697.14 : x
  2. Step 2: Convert to fraction form
    74,007.72/102,149.64 = 45,697.14/x
  3. Step 3: Cross multiply
    74,007.72x = 102,149.64 × 45,697.14
  4. Step 4: Simplify right side
    74,007.72x = 4,667,946,400.03
  5. Step 5: Solve for x
    x = 4,667,946,400.03/74,007.72
  6. Step 6: Final answer
    x = 63,073.78

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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.