Home / 85,520.20-118,018.05-47,794.45

Finding the Fourth Proportional to 85,520.20, 118,018.05 and 47,794.45

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Solution

The fourth proportional to 85,520.20, 118,018.05 and 47,794.45 is: 65,956.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,520.20 : 118,018.05 = 47,794.45 : x
  2. Step 2: Convert to fraction form
    85,520.20/118,018.05 = 47,794.45/x
  3. Step 3: Cross multiply
    85,520.20x = 118,018.05 × 47,794.45
  4. Step 4: Simplify right side
    85,520.20x = 5,640,607,789.82
  5. Step 5: Solve for x
    x = 5,640,607,789.82/85,520.20
  6. Step 6: Final answer
    x = 65,956.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.