Home / 71,836.68-99,127.53-40,008.54

Finding the Fourth Proportional to 71,836.68, 99,127.53 and 40,008.54

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Solution

The fourth proportional to 71,836.68, 99,127.53 and 40,008.54 is: 55,207.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,836.68 : 99,127.53 = 40,008.54 : x
  2. Step 2: Convert to fraction form
    71,836.68/99,127.53 = 40,008.54/x
  3. Step 3: Cross multiply
    71,836.68x = 99,127.53 × 40,008.54
  4. Step 4: Simplify right side
    71,836.68x = 3,965,947,749.11
  5. Step 5: Solve for x
    x = 3,965,947,749.11/71,836.68
  6. Step 6: Final answer
    x = 55,207.84

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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.