Home / 42,735.18-64,097.91-11,572.86

Finding the Fourth Proportional to 42,735.18, 64,097.91 and 11,572.86

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Solution

The fourth proportional to 42,735.18, 64,097.91 and 11,572.86 is: 17,357.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,735.18 : 64,097.91 = 11,572.86 : x
  2. Step 2: Convert to fraction form
    42,735.18/64,097.91 = 11,572.86/x
  3. Step 3: Cross multiply
    42,735.18x = 64,097.91 × 11,572.86
  4. Step 4: Simplify right side
    42,735.18x = 741,796,138.72
  5. Step 5: Solve for x
    x = 741,796,138.72/42,735.18
  6. Step 6: Final answer
    x = 17,357.97

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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.