Home / 73,905.14-101,989.41-40,371.86

Finding the Fourth Proportional to 73,905.14, 101,989.41 and 40,371.86

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Solution

The fourth proportional to 73,905.14, 101,989.41 and 40,371.86 is: 55,713.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,905.14 : 101,989.41 = 40,371.86 : x
  2. Step 2: Convert to fraction form
    73,905.14/101,989.41 = 40,371.86/x
  3. Step 3: Cross multiply
    73,905.14x = 101,989.41 × 40,371.86
  4. Step 4: Simplify right side
    73,905.14x = 4,117,502,182.00
  5. Step 5: Solve for x
    x = 4,117,502,182.00/73,905.14
  6. Step 6: Final answer
    x = 55,713.34

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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.