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Finding the Fourth Proportional to 76,892.38, 115,366.26 and 26,980.26

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Solution

The fourth proportional to 76,892.38, 115,366.26 and 26,980.26 is: 40,480.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,892.38 : 115,366.26 = 26,980.26 : x
  2. Step 2: Convert to fraction form
    76,892.38/115,366.26 = 26,980.26/x
  3. Step 3: Cross multiply
    76,892.38x = 115,366.26 × 26,980.26
  4. Step 4: Simplify right side
    76,892.38x = 3,112,611,358.58
  5. Step 5: Solve for x
    x = 3,112,611,358.58/76,892.38
  6. Step 6: Final answer
    x = 40,480.10

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1.5x scale

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.