Home / 53,765.36-80,661.27-18,705.32

Finding the Fourth Proportional to 53,765.36, 80,661.27 and 18,705.32

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Solution

The fourth proportional to 53,765.36, 80,661.27 and 18,705.32 is: 28,062.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,765.36 : 80,661.27 = 18,705.32 : x
  2. Step 2: Convert to fraction form
    53,765.36/80,661.27 = 18,705.32/x
  3. Step 3: Cross multiply
    53,765.36x = 80,661.27 × 18,705.32
  4. Step 4: Simplify right side
    53,765.36x = 1,508,794,866.96
  5. Step 5: Solve for x
    x = 1,508,794,866.96/53,765.36
  6. Step 6: Final answer
    x = 28,062.58

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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.