Home / 51,983.10-77,974.65-18,708.30

Finding the Fourth Proportional to 51,983.10, 77,974.65 and 18,708.30

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Solution

The fourth proportional to 51,983.10, 77,974.65 and 18,708.30 is: 28,062.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,983.10 : 77,974.65 = 18,708.30 : x
  2. Step 2: Convert to fraction form
    51,983.10/77,974.65 = 18,708.30/x
  3. Step 3: Cross multiply
    51,983.10x = 77,974.65 × 18,708.30
  4. Step 4: Simplify right side
    51,983.10x = 1,458,773,144.60
  5. Step 5: Solve for x
    x = 1,458,773,144.60/51,983.10
  6. Step 6: Final answer
    x = 28,062.45

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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.