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Finding the Fourth Proportional to 53,474.40, 80,384.40 and 37,999.20

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Solution

The fourth proportional to 53,474.40, 80,384.40 and 37,999.20 is: 57,121.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,474.40 : 80,384.40 = 37,999.20 : x
  2. Step 2: Convert to fraction form
    53,474.40/80,384.40 = 37,999.20/x
  3. Step 3: Cross multiply
    53,474.40x = 80,384.40 × 37,999.20
  4. Step 4: Simplify right side
    53,474.40x = 3,054,542,892.48
  5. Step 5: Solve for x
    x = 3,054,542,892.48/53,474.40
  6. Step 6: Final answer
    x = 57,121.59

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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.