Home / 82,803.17-124,206.81-30,212.66

Finding the Fourth Proportional to 82,803.17, 124,206.81 and 30,212.66

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Solution

The fourth proportional to 82,803.17, 124,206.81 and 30,212.66 is: 45,319.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,803.17 : 124,206.81 = 30,212.66 : x
  2. Step 2: Convert to fraction form
    82,803.17/124,206.81 = 30,212.66/x
  3. Step 3: Cross multiply
    82,803.17x = 124,206.81 × 30,212.66
  4. Step 4: Simplify right side
    82,803.17x = 3,752,618,120.21
  5. Step 5: Solve for x
    x = 3,752,618,120.21/82,803.17
  6. Step 6: Final answer
    x = 45,319.74

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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.