Home / 61,680.48-85,120.20-36,205.08

Finding the Fourth Proportional to 61,680.48, 85,120.20 and 36,205.08

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Solution

The fourth proportional to 61,680.48, 85,120.20 and 36,205.08 is: 49,963.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,680.48 : 85,120.20 = 36,205.08 : x
  2. Step 2: Convert to fraction form
    61,680.48/85,120.20 = 36,205.08/x
  3. Step 3: Cross multiply
    61,680.48x = 85,120.20 × 36,205.08
  4. Step 4: Simplify right side
    61,680.48x = 3,081,783,650.62
  5. Step 5: Solve for x
    x = 3,081,783,650.62/61,680.48
  6. Step 6: Final answer
    x = 49,963.68

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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.