Home / 64,575.68-96,836.18-20,190.51

Finding the Fourth Proportional to 64,575.68, 96,836.18 and 20,190.51

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Solution

The fourth proportional to 64,575.68, 96,836.18 and 20,190.51 is: 30,277.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,575.68 : 96,836.18 = 20,190.51 : x
  2. Step 2: Convert to fraction form
    64,575.68/96,836.18 = 20,190.51/x
  3. Step 3: Cross multiply
    64,575.68x = 96,836.18 × 20,190.51
  4. Step 4: Simplify right side
    64,575.68x = 1,955,171,759.70
  5. Step 5: Solve for x
    x = 1,955,171,759.70/64,575.68
  6. Step 6: Final answer
    x = 30,277.22

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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.