Home / 51,348.64-77,017.12-13,906.56

Finding the Fourth Proportional to 51,348.64, 77,017.12 and 13,906.56

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Solution

The fourth proportional to 51,348.64, 77,017.12 and 13,906.56 is: 20,858.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,348.64 : 77,017.12 = 13,906.56 : x
  2. Step 2: Convert to fraction form
    51,348.64/77,017.12 = 13,906.56/x
  3. Step 3: Cross multiply
    51,348.64x = 77,017.12 × 13,906.56
  4. Step 4: Simplify right side
    51,348.64x = 1,071,043,200.31
  5. Step 5: Solve for x
    x = 1,071,043,200.31/51,348.64
  6. Step 6: Final answer
    x = 20,858.26

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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.