Home / 99,742.52-149,484.51-40,509.38

Finding the Fourth Proportional to 99,742.52, 149,484.51 and 40,509.38

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Solution

The fourth proportional to 99,742.52, 149,484.51 and 40,509.38 is: 60,711.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,742.52 : 149,484.51 = 40,509.38 : x
  2. Step 2: Convert to fraction form
    99,742.52/149,484.51 = 40,509.38/x
  3. Step 3: Cross multiply
    99,742.52x = 149,484.51 × 40,509.38
  4. Step 4: Simplify right side
    99,742.52x = 6,055,524,819.70
  5. Step 5: Solve for x
    x = 6,055,524,819.70/99,742.52
  6. Step 6: Final answer
    x = 60,711.57

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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.