Home / 40,078.72-55,298.64-25,914.52

Finding the Fourth Proportional to 40,078.72, 55,298.64 and 25,914.52

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Solution

The fourth proportional to 40,078.72, 55,298.64 and 25,914.52 is: 35,755.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,078.72 : 55,298.64 = 25,914.52 : x
  2. Step 2: Convert to fraction form
    40,078.72/55,298.64 = 25,914.52/x
  3. Step 3: Cross multiply
    40,078.72x = 55,298.64 × 25,914.52
  4. Step 4: Simplify right side
    40,078.72x = 1,433,037,712.25
  5. Step 5: Solve for x
    x = 1,433,037,712.25/40,078.72
  6. Step 6: Final answer
    x = 35,755.58

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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.