Home / 55,157.23-82,663.15-21,859.14

Finding the Fourth Proportional to 55,157.23, 82,663.15 and 21,859.14

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Solution

The fourth proportional to 55,157.23, 82,663.15 and 21,859.14 is: 32,759.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,157.23 : 82,663.15 = 21,859.14 : x
  2. Step 2: Convert to fraction form
    55,157.23/82,663.15 = 21,859.14/x
  3. Step 3: Cross multiply
    55,157.23x = 82,663.15 × 21,859.14
  4. Step 4: Simplify right side
    55,157.23x = 1,806,945,368.69
  5. Step 5: Solve for x
    x = 1,806,945,368.69/55,157.23
  6. Step 6: Final answer
    x = 32,759.90

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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.