Home / 82,790.55-124,186.23-30,199.95

Finding the Fourth Proportional to 82,790.55, 124,186.23 and 30,199.95

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Solution

The fourth proportional to 82,790.55, 124,186.23 and 30,199.95 is: 45,300.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,790.55 : 124,186.23 = 30,199.95 : x
  2. Step 2: Convert to fraction form
    82,790.55/124,186.23 = 30,199.95/x
  3. Step 3: Cross multiply
    82,790.55x = 124,186.23 × 30,199.95
  4. Step 4: Simplify right side
    82,790.55x = 3,750,417,936.69
  5. Step 5: Solve for x
    x = 3,750,417,936.69/82,790.55
  6. Step 6: Final answer
    x = 45,300.07

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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.