Home / 54,428.22-81,629.91-14,988.78

Finding the Fourth Proportional to 54,428.22, 81,629.91 and 14,988.78

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Solution

The fourth proportional to 54,428.22, 81,629.91 and 14,988.78 is: 22,479.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,428.22 : 81,629.91 = 14,988.78 : x
  2. Step 2: Convert to fraction form
    54,428.22/81,629.91 = 14,988.78/x
  3. Step 3: Cross multiply
    54,428.22x = 81,629.91 × 14,988.78
  4. Step 4: Simplify right side
    54,428.22x = 1,223,532,762.41
  5. Step 5: Solve for x
    x = 1,223,532,762.41/54,428.22
  6. Step 6: Final answer
    x = 22,479.75

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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.