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Finding the Fourth Proportional to 62,777.63, 94,172.61 and 20,640.62

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Solution

The fourth proportional to 62,777.63, 94,172.61 and 20,640.62 is: 30,962.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,777.63 : 94,172.61 = 20,640.62 : x
  2. Step 2: Convert to fraction form
    62,777.63/94,172.61 = 20,640.62/x
  3. Step 3: Cross multiply
    62,777.63x = 94,172.61 × 20,640.62
  4. Step 4: Simplify right side
    62,777.63x = 1,943,781,057.42
  5. Step 5: Solve for x
    x = 1,943,781,057.42/62,777.63
  6. Step 6: Final answer
    x = 30,962.96

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1.5x scale

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.