Home / 78,945.66-118,426.37-22,787.13

Finding the Fourth Proportional to 78,945.66, 118,426.37 and 22,787.13

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Solution

The fourth proportional to 78,945.66, 118,426.37 and 22,787.13 is: 34,182.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,945.66 : 118,426.37 = 22,787.13 : x
  2. Step 2: Convert to fraction form
    78,945.66/118,426.37 = 22,787.13/x
  3. Step 3: Cross multiply
    78,945.66x = 118,426.37 × 22,787.13
  4. Step 4: Simplify right side
    78,945.66x = 2,698,596,974.68
  5. Step 5: Solve for x
    x = 2,698,596,974.68/78,945.66
  6. Step 6: Final answer
    x = 34,182.97

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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.