Home / 78,790.15-118,167.20-22,629.81

Finding the Fourth Proportional to 78,790.15, 118,167.20 and 22,629.81

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Solution

The fourth proportional to 78,790.15, 118,167.20 and 22,629.81 is: 33,939.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,790.15 : 118,167.20 = 22,629.81 : x
  2. Step 2: Convert to fraction form
    78,790.15/118,167.20 = 22,629.81/x
  3. Step 3: Cross multiply
    78,790.15x = 118,167.20 × 22,629.81
  4. Step 4: Simplify right side
    78,790.15x = 2,674,101,284.23
  5. Step 5: Solve for x
    x = 2,674,101,284.23/78,790.15
  6. Step 6: Final answer
    x = 33,939.54

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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.