Home / 82,886.69-124,329.92-38,489.16

Finding the Fourth Proportional to 82,886.69, 124,329.92 and 38,489.16

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Solution

The fourth proportional to 82,886.69, 124,329.92 and 38,489.16 is: 57,733.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,886.69 : 124,329.92 = 38,489.16 : x
  2. Step 2: Convert to fraction form
    82,886.69/124,329.92 = 38,489.16/x
  3. Step 3: Cross multiply
    82,886.69x = 124,329.92 × 38,489.16
  4. Step 4: Simplify right side
    82,886.69x = 4,785,353,991.22
  5. Step 5: Solve for x
    x = 4,785,353,991.22/82,886.69
  6. Step 6: Final answer
    x = 57,733.69

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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.