Home / 57,127.46-78,793.40-36,968.78

Finding the Fourth Proportional to 57,127.46, 78,793.40 and 36,968.78

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Solution

The fourth proportional to 57,127.46, 78,793.40 and 36,968.78 is: 50,989.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,127.46 : 78,793.40 = 36,968.78 : x
  2. Step 2: Convert to fraction form
    57,127.46/78,793.40 = 36,968.78/x
  3. Step 3: Cross multiply
    57,127.46x = 78,793.40 × 36,968.78
  4. Step 4: Simplify right side
    57,127.46x = 2,912,896,159.46
  5. Step 5: Solve for x
    x = 2,912,896,159.46/57,127.46
  6. Step 6: Final answer
    x = 50,989.43

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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.