Home / 101,530.44-140,112.18-55,589.40

Finding the Fourth Proportional to 101,530.44, 140,112.18 and 55,589.40

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Solution

The fourth proportional to 101,530.44, 140,112.18 and 55,589.40 is: 76,713.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,530.44 : 140,112.18 = 55,589.40 : x
  2. Step 2: Convert to fraction form
    101,530.44/140,112.18 = 55,589.40/x
  3. Step 3: Cross multiply
    101,530.44x = 140,112.18 × 55,589.40
  4. Step 4: Simplify right side
    101,530.44x = 7,788,752,018.89
  5. Step 5: Solve for x
    x = 7,788,752,018.89/101,530.44
  6. Step 6: Final answer
    x = 76,713.47

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.