Home / 99,811.79-149,661.18-40,577.81

Finding the Fourth Proportional to 99,811.79, 149,661.18 and 40,577.81

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Solution

The fourth proportional to 99,811.79, 149,661.18 and 40,577.81 is: 60,843.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,811.79 : 149,661.18 = 40,577.81 : x
  2. Step 2: Convert to fraction form
    99,811.79/149,661.18 = 40,577.81/x
  3. Step 3: Cross multiply
    99,811.79x = 149,661.18 × 40,577.81
  4. Step 4: Simplify right side
    99,811.79x = 6,072,922,178.11
  5. Step 5: Solve for x
    x = 6,072,922,178.11/99,811.79
  6. Step 6: Final answer
    x = 60,843.74

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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.