Home / 100,071.24-138,099.33-54,748.23

Finding the Fourth Proportional to 100,071.24, 138,099.33 and 54,748.23

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Solution

The fourth proportional to 100,071.24, 138,099.33 and 54,748.23 is: 75,553.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,071.24 : 138,099.33 = 54,748.23 : x
  2. Step 2: Convert to fraction form
    100,071.24/138,099.33 = 54,748.23/x
  3. Step 3: Cross multiply
    100,071.24x = 138,099.33 × 54,748.23
  4. Step 4: Simplify right side
    100,071.24x = 7,560,692,917.45
  5. Step 5: Solve for x
    x = 7,560,692,917.45/100,071.24
  6. Step 6: Final answer
    x = 75,553.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.