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Finding the Fourth Proportional to 61,940.52, 85,321.62 and 49,970.34

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Solution

The fourth proportional to 61,940.52, 85,321.62 and 49,970.34 is: 68,832.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,940.52 : 85,321.62 = 49,970.34 : x
  2. Step 2: Convert to fraction form
    61,940.52/85,321.62 = 49,970.34/x
  3. Step 3: Cross multiply
    61,940.52x = 85,321.62 × 49,970.34
  4. Step 4: Simplify right side
    61,940.52x = 4,263,550,360.75
  5. Step 5: Solve for x
    x = 4,263,550,360.75/61,940.52
  6. Step 6: Final answer
    x = 68,832.98

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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.