Home / 78,789.15-118,165.70-22,628.81

Finding the Fourth Proportional to 78,789.15, 118,165.70 and 22,628.81

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Solution

The fourth proportional to 78,789.15, 118,165.70 and 22,628.81 is: 33,938.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,789.15 : 118,165.70 = 22,628.81 : x
  2. Step 2: Convert to fraction form
    78,789.15/118,165.70 = 22,628.81/x
  3. Step 3: Cross multiply
    78,789.15x = 118,165.70 × 22,628.81
  4. Step 4: Simplify right side
    78,789.15x = 2,673,949,525.80
  5. Step 5: Solve for x
    x = 2,673,949,525.80/78,789.15
  6. Step 6: Final answer
    x = 33,938.04

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1.5x scale

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.