Home / 54,526.47-81,756.22-21,207.71

Finding the Fourth Proportional to 54,526.47, 81,756.22 and 21,207.71

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Solution

The fourth proportional to 54,526.47, 81,756.22 and 21,207.71 is: 31,798.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,526.47 : 81,756.22 = 21,207.71 : x
  2. Step 2: Convert to fraction form
    54,526.47/81,756.22 = 21,207.71/x
  3. Step 3: Cross multiply
    54,526.47x = 81,756.22 × 21,207.71
  4. Step 4: Simplify right side
    54,526.47x = 1,733,861,935.71
  5. Step 5: Solve for x
    x = 1,733,861,935.71/54,526.47
  6. Step 6: Final answer
    x = 31,798.54

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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.