Home / 82,782.14-124,160.61-30,191.66

Finding the Fourth Proportional to 82,782.14, 124,160.61 and 30,191.66

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Solution

The fourth proportional to 82,782.14, 124,160.61 and 30,191.66 is: 45,282.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,782.14 : 124,160.61 = 30,191.66 : x
  2. Step 2: Convert to fraction form
    82,782.14/124,160.61 = 30,191.66/x
  3. Step 3: Cross multiply
    82,782.14x = 124,160.61 × 30,191.66
  4. Step 4: Simplify right side
    82,782.14x = 3,748,614,922.51
  5. Step 5: Solve for x
    x = 3,748,614,922.51/82,782.14
  6. Step 6: Final answer
    x = 45,282.89

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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.