Home / 67,305.02-100,977.24-19,921.31

Finding the Fourth Proportional to 67,305.02, 100,977.24 and 19,921.31

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Solution

The fourth proportional to 67,305.02, 100,977.24 and 19,921.31 is: 29,887.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,305.02 : 100,977.24 = 19,921.31 : x
  2. Step 2: Convert to fraction form
    67,305.02/100,977.24 = 19,921.31/x
  3. Step 3: Cross multiply
    67,305.02x = 100,977.24 × 19,921.31
  4. Step 4: Simplify right side
    67,305.02x = 2,011,598,900.98
  5. Step 5: Solve for x
    x = 2,011,598,900.98/67,305.02
  6. Step 6: Final answer
    x = 29,887.80

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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.