Home / 54,226.32-81,277.10-20,931.81

Finding the Fourth Proportional to 54,226.32, 81,277.10 and 20,931.81

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Solution

The fourth proportional to 54,226.32, 81,277.10 and 20,931.81 is: 31,373.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,226.32 : 81,277.10 = 20,931.81 : x
  2. Step 2: Convert to fraction form
    54,226.32/81,277.10 = 20,931.81/x
  3. Step 3: Cross multiply
    54,226.32x = 81,277.10 × 20,931.81
  4. Step 4: Simplify right side
    54,226.32x = 1,701,276,814.55
  5. Step 5: Solve for x
    x = 1,701,276,814.55/54,226.32
  6. Step 6: Final answer
    x = 31,373.64

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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.