Home / 72,570.24-108,838.35-19,983.96

Finding the Fourth Proportional to 72,570.24, 108,838.35 and 19,983.96

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Solution

The fourth proportional to 72,570.24, 108,838.35 and 19,983.96 is: 29,971.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,570.24 : 108,838.35 = 19,983.96 : x
  2. Step 2: Convert to fraction form
    72,570.24/108,838.35 = 19,983.96/x
  3. Step 3: Cross multiply
    72,570.24x = 108,838.35 × 19,983.96
  4. Step 4: Simplify right side
    72,570.24x = 2,175,021,232.87
  5. Step 5: Solve for x
    x = 2,175,021,232.87/72,570.24
  6. Step 6: Final answer
    x = 29,971.26

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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.