Home / 52,853.14-72,937.23-28,979.78

Finding the Fourth Proportional to 52,853.14, 72,937.23 and 28,979.78

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Solution

The fourth proportional to 52,853.14, 72,937.23 and 28,979.78 is: 39,992.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,853.14 : 72,937.23 = 28,979.78 : x
  2. Step 2: Convert to fraction form
    52,853.14/72,937.23 = 28,979.78/x
  3. Step 3: Cross multiply
    52,853.14x = 72,937.23 × 28,979.78
  4. Step 4: Simplify right side
    52,853.14x = 2,113,704,405.85
  5. Step 5: Solve for x
    x = 2,113,704,405.85/52,853.14
  6. Step 6: Final answer
    x = 39,992.03

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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.