Home / 68,071.47-102,112.07-18,151.31

Finding the Fourth Proportional to 68,071.47, 102,112.07 and 18,151.31

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Solution

The fourth proportional to 68,071.47, 102,112.07 and 18,151.31 is: 27,228.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,071.47 : 102,112.07 = 18,151.31 : x
  2. Step 2: Convert to fraction form
    68,071.47/102,112.07 = 18,151.31/x
  3. Step 3: Cross multiply
    68,071.47x = 102,112.07 × 18,151.31
  4. Step 4: Simplify right side
    68,071.47x = 1,853,467,235.99
  5. Step 5: Solve for x
    x = 1,853,467,235.99/68,071.47
  6. Step 6: Final answer
    x = 27,228.25

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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.