Home / 82,088.07-123,139.09-25,913.15

Finding the Fourth Proportional to 82,088.07, 123,139.09 and 25,913.15

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Solution

The fourth proportional to 82,088.07, 123,139.09 and 25,913.15 is: 38,871.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,088.07 : 123,139.09 = 25,913.15 : x
  2. Step 2: Convert to fraction form
    82,088.07/123,139.09 = 25,913.15/x
  3. Step 3: Cross multiply
    82,088.07x = 123,139.09 × 25,913.15
  4. Step 4: Simplify right side
    82,088.07x = 3,190,921,645.25
  5. Step 5: Solve for x
    x = 3,190,921,645.25/82,088.07
  6. Step 6: Final answer
    x = 38,871.93

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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.