Home / 72,701.36-109,057.22-19,393.03

Finding the Fourth Proportional to 72,701.36, 109,057.22 and 19,393.03

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Solution

The fourth proportional to 72,701.36, 109,057.22 and 19,393.03 is: 29,090.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,701.36 : 109,057.22 = 19,393.03 : x
  2. Step 2: Convert to fraction form
    72,701.36/109,057.22 = 19,393.03/x
  3. Step 3: Cross multiply
    72,701.36x = 109,057.22 × 19,393.03
  4. Step 4: Simplify right side
    72,701.36x = 2,114,949,939.18
  5. Step 5: Solve for x
    x = 2,114,949,939.18/72,701.36
  6. Step 6: Final answer
    x = 29,090.93

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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.