Home / 45,027.36-62,143.20-28,257.12

Finding the Fourth Proportional to 45,027.36, 62,143.20 and 28,257.12

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Solution

The fourth proportional to 45,027.36, 62,143.20 and 28,257.12 is: 38,998.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,027.36 : 62,143.20 = 28,257.12 : x
  2. Step 2: Convert to fraction form
    45,027.36/62,143.20 = 28,257.12/x
  3. Step 3: Cross multiply
    45,027.36x = 62,143.20 × 28,257.12
  4. Step 4: Simplify right side
    45,027.36x = 1,755,987,859.58
  5. Step 5: Solve for x
    x = 1,755,987,859.58/45,027.36
  6. Step 6: Final answer
    x = 38,998.24

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Double scale
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1.5x scale

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.