Home / 79,281.22-109,403.88-45,283.03

Finding the Fourth Proportional to 79,281.22, 109,403.88 and 45,283.03

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Solution

The fourth proportional to 79,281.22, 109,403.88 and 45,283.03 is: 62,488.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,281.22 : 109,403.88 = 45,283.03 : x
  2. Step 2: Convert to fraction form
    79,281.22/109,403.88 = 45,283.03/x
  3. Step 3: Cross multiply
    79,281.22x = 109,403.88 × 45,283.03
  4. Step 4: Simplify right side
    79,281.22x = 4,954,139,180.16
  5. Step 5: Solve for x
    x = 4,954,139,180.16/79,281.22
  6. Step 6: Final answer
    x = 62,488.18

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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.