Home / 53,251.14-79,918.02-20,001.45

Finding the Fourth Proportional to 53,251.14, 79,918.02 and 20,001.45

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Solution

The fourth proportional to 53,251.14, 79,918.02 and 20,001.45 is: 30,017.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,251.14 : 79,918.02 = 20,001.45 : x
  2. Step 2: Convert to fraction form
    53,251.14/79,918.02 = 20,001.45/x
  3. Step 3: Cross multiply
    53,251.14x = 79,918.02 × 20,001.45
  4. Step 4: Simplify right side
    53,251.14x = 1,598,476,281.13
  5. Step 5: Solve for x
    x = 1,598,476,281.13/53,251.14
  6. Step 6: Final answer
    x = 30,017.69

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.