Home / 52,742.96-72,785.37-28,871.15

Finding the Fourth Proportional to 52,742.96, 72,785.37 and 28,871.15

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Solution

The fourth proportional to 52,742.96, 72,785.37 and 28,871.15 is: 39,842.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,742.96 : 72,785.37 = 28,871.15 : x
  2. Step 2: Convert to fraction form
    52,742.96/72,785.37 = 28,871.15/x
  3. Step 3: Cross multiply
    52,742.96x = 72,785.37 × 28,871.15
  4. Step 4: Simplify right side
    52,742.96x = 2,101,397,335.08
  5. Step 5: Solve for x
    x = 2,101,397,335.08/52,742.96
  6. Step 6: Final answer
    x = 39,842.23

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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.