Home / 79,062.11-118,403.13-45,225.54

Finding the Fourth Proportional to 79,062.11, 118,403.13 and 45,225.54

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Solution

The fourth proportional to 79,062.11, 118,403.13 and 45,225.54 is: 67,729.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,062.11 : 118,403.13 = 45,225.54 : x
  2. Step 2: Convert to fraction form
    79,062.11/118,403.13 = 45,225.54/x
  3. Step 3: Cross multiply
    79,062.11x = 118,403.13 × 45,225.54
  4. Step 4: Simplify right side
    79,062.11x = 5,354,845,661.54
  5. Step 5: Solve for x
    x = 5,354,845,661.54/79,062.11
  6. Step 6: Final answer
    x = 67,729.61

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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.