Home / 72,827.96-100,507.68-40,565.16

Finding the Fourth Proportional to 72,827.96, 100,507.68 and 40,565.16

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Solution

The fourth proportional to 72,827.96, 100,507.68 and 40,565.16 is: 55,982.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,827.96 : 100,507.68 = 40,565.16 : x
  2. Step 2: Convert to fraction form
    72,827.96/100,507.68 = 40,565.16/x
  3. Step 3: Cross multiply
    72,827.96x = 100,507.68 × 40,565.16
  4. Step 4: Simplify right side
    72,827.96x = 4,077,110,120.43
  5. Step 5: Solve for x
    x = 4,077,110,120.43/72,827.96
  6. Step 6: Final answer
    x = 55,982.76

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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.