Home / 51,381.51-77,079.60-15,845.82

Finding the Fourth Proportional to 51,381.51, 77,079.60 and 15,845.82

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Solution

The fourth proportional to 51,381.51, 77,079.60 and 15,845.82 is: 23,770.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,381.51 : 77,079.60 = 15,845.82 : x
  2. Step 2: Convert to fraction form
    51,381.51/77,079.60 = 15,845.82/x
  3. Step 3: Cross multiply
    51,381.51x = 77,079.60 × 15,845.82
  4. Step 4: Simplify right side
    51,381.51x = 1,221,389,467.27
  5. Step 5: Solve for x
    x = 1,221,389,467.27/51,381.51
  6. Step 6: Final answer
    x = 23,770.99

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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.