Home / 52,979.55-73,111.41-28,780.29

Finding the Fourth Proportional to 52,979.55, 73,111.41 and 28,780.29

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Solution

The fourth proportional to 52,979.55, 73,111.41 and 28,780.29 is: 39,716.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,979.55 : 73,111.41 = 28,780.29 : x
  2. Step 2: Convert to fraction form
    52,979.55/73,111.41 = 28,780.29/x
  3. Step 3: Cross multiply
    52,979.55x = 73,111.41 × 28,780.29
  4. Step 4: Simplify right side
    52,979.55x = 2,104,167,582.11
  5. Step 5: Solve for x
    x = 2,104,167,582.11/52,979.55
  6. Step 6: Final answer
    x = 39,716.60

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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.