Home / 51,988.02-77,982.02-20,412.96

Finding the Fourth Proportional to 51,988.02, 77,982.02 and 20,412.96

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Solution

The fourth proportional to 51,988.02, 77,982.02 and 20,412.96 is: 30,619.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,988.02 : 77,982.02 = 20,412.96 : x
  2. Step 2: Convert to fraction form
    51,988.02/77,982.02 = 20,412.96/x
  3. Step 3: Cross multiply
    51,988.02x = 77,982.02 × 20,412.96
  4. Step 4: Simplify right side
    51,988.02x = 1,591,843,854.98
  5. Step 5: Solve for x
    x = 1,591,843,854.98/51,988.02
  6. Step 6: Final answer
    x = 30,619.44

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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.