Home / 51,420.76-77,132.82-17,686.43

Finding the Fourth Proportional to 51,420.76, 77,132.82 and 17,686.43

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Solution

The fourth proportional to 51,420.76, 77,132.82 and 17,686.43 is: 26,530.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,420.76 : 77,132.82 = 17,686.43 : x
  2. Step 2: Convert to fraction form
    51,420.76/77,132.82 = 17,686.43/x
  3. Step 3: Cross multiply
    51,420.76x = 77,132.82 × 17,686.43
  4. Step 4: Simplify right side
    51,420.76x = 1,364,204,221.63
  5. Step 5: Solve for x
    x = 1,364,204,221.63/51,420.76
  6. Step 6: Final answer
    x = 26,530.22

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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.