Home / 52,780.46-72,837.04-28,907.20

Finding the Fourth Proportional to 52,780.46, 72,837.04 and 28,907.20

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Solution

The fourth proportional to 52,780.46, 72,837.04 and 28,907.20 is: 39,891.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,780.46 : 72,837.04 = 28,907.20 : x
  2. Step 2: Convert to fraction form
    52,780.46/72,837.04 = 28,907.20/x
  3. Step 3: Cross multiply
    52,780.46x = 72,837.04 × 28,907.20
  4. Step 4: Simplify right side
    52,780.46x = 2,105,514,882.69
  5. Step 5: Solve for x
    x = 2,105,514,882.69/52,780.46
  6. Step 6: Final answer
    x = 39,891.94

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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.