Home / 77,914.66-116,972.44-66,892.18

Finding the Fourth Proportional to 77,914.66, 116,972.44 and 66,892.18

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Solution

The fourth proportional to 77,914.66, 116,972.44 and 66,892.18 is: 100,424.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,914.66 : 116,972.44 = 66,892.18 : x
  2. Step 2: Convert to fraction form
    77,914.66/116,972.44 = 66,892.18/x
  3. Step 3: Cross multiply
    77,914.66x = 116,972.44 × 66,892.18
  4. Step 4: Simplify right side
    77,914.66x = 7,824,541,511.52
  5. Step 5: Solve for x
    x = 7,824,541,511.52/77,914.66
  6. Step 6: Final answer
    x = 100,424.51

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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.