Home / 73,905.64-101,990.10-40,372.36

Finding the Fourth Proportional to 73,905.64, 101,990.10 and 40,372.36

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Solution

The fourth proportional to 73,905.64, 101,990.10 and 40,372.36 is: 55,714.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,905.64 : 101,990.10 = 40,372.36 : x
  2. Step 2: Convert to fraction form
    73,905.64/101,990.10 = 40,372.36/x
  3. Step 3: Cross multiply
    73,905.64x = 101,990.10 × 40,372.36
  4. Step 4: Simplify right side
    73,905.64x = 4,117,581,033.64
  5. Step 5: Solve for x
    x = 4,117,581,033.64/73,905.64
  6. Step 6: Final answer
    x = 55,714.03

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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.