Home / 78,528.16-117,793.49-19,363.85

Finding the Fourth Proportional to 78,528.16, 117,793.49 and 19,363.85

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Solution

The fourth proportional to 78,528.16, 117,793.49 and 19,363.85 is: 29,046.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,528.16 : 117,793.49 = 19,363.85 : x
  2. Step 2: Convert to fraction form
    78,528.16/117,793.49 = 19,363.85/x
  3. Step 3: Cross multiply
    78,528.16x = 117,793.49 × 19,363.85
  4. Step 4: Simplify right side
    78,528.16x = 2,280,934,785.55
  5. Step 5: Solve for x
    x = 2,280,934,785.55/78,528.16
  6. Step 6: Final answer
    x = 29,046.07

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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.