Home / 82,218.09-113,448.76-49,935.91

Finding the Fourth Proportional to 82,218.09, 113,448.76 and 49,935.91

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Solution

The fourth proportional to 82,218.09, 113,448.76 and 49,935.91 is: 68,904.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,218.09 : 113,448.76 = 49,935.91 : x
  2. Step 2: Convert to fraction form
    82,218.09/113,448.76 = 49,935.91/x
  3. Step 3: Cross multiply
    82,218.09x = 113,448.76 × 49,935.91
  4. Step 4: Simplify right side
    82,218.09x = 5,665,167,068.97
  5. Step 5: Solve for x
    x = 5,665,167,068.97/82,218.09
  6. Step 6: Final answer
    x = 68,904.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.