Home / 82,784.14-124,163.61-30,193.66

Finding the Fourth Proportional to 82,784.14, 124,163.61 and 30,193.66

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Solution

The fourth proportional to 82,784.14, 124,163.61 and 30,193.66 is: 45,285.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,784.14 : 124,163.61 = 30,193.66 : x
  2. Step 2: Convert to fraction form
    82,784.14/124,163.61 = 30,193.66/x
  3. Step 3: Cross multiply
    82,784.14x = 124,163.61 × 30,193.66
  4. Step 4: Simplify right side
    82,784.14x = 3,748,953,824.71
  5. Step 5: Solve for x
    x = 3,748,953,824.71/82,784.14
  6. Step 6: Final answer
    x = 45,285.89

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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.