Home / 54,615.11-75,392.09-36,720.50

Finding the Fourth Proportional to 54,615.11, 75,392.09 and 36,720.50

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Solution

The fourth proportional to 54,615.11, 75,392.09 and 36,720.50 is: 50,689.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,615.11 : 75,392.09 = 36,720.50 : x
  2. Step 2: Convert to fraction form
    54,615.11/75,392.09 = 36,720.50/x
  3. Step 3: Cross multiply
    54,615.11x = 75,392.09 × 36,720.50
  4. Step 4: Simplify right side
    54,615.11x = 2,768,434,680.28
  5. Step 5: Solve for x
    x = 2,768,434,680.28/54,615.11
  6. Step 6: Final answer
    x = 50,689.91

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.