Home / 82,486.47-123,674.16-38,088.75

Finding the Fourth Proportional to 82,486.47, 123,674.16 and 38,088.75

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Solution

The fourth proportional to 82,486.47, 123,674.16 and 38,088.75 is: 57,107.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,486.47 : 123,674.16 = 38,088.75 : x
  2. Step 2: Convert to fraction form
    82,486.47/123,674.16 = 38,088.75/x
  3. Step 3: Cross multiply
    82,486.47x = 123,674.16 × 38,088.75
  4. Step 4: Simplify right side
    82,486.47x = 4,710,594,161.70
  5. Step 5: Solve for x
    x = 4,710,594,161.70/82,486.47
  6. Step 6: Final answer
    x = 57,107.48

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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.