Home / 73,126.26-109,688.88-20,535.81

Finding the Fourth Proportional to 73,126.26, 109,688.88 and 20,535.81

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Solution

The fourth proportional to 73,126.26, 109,688.88 and 20,535.81 is: 30,803.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,126.26 : 109,688.88 = 20,535.81 : x
  2. Step 2: Convert to fraction form
    73,126.26/109,688.88 = 20,535.81/x
  3. Step 3: Cross multiply
    73,126.26x = 109,688.88 × 20,535.81
  4. Step 4: Simplify right side
    73,126.26x = 2,252,549,998.79
  5. Step 5: Solve for x
    x = 2,252,549,998.79/73,126.26
  6. Step 6: Final answer
    x = 30,803.57

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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.