Home / 90,321.34-124,611.36-53,997.56

Finding the Fourth Proportional to 90,321.34, 124,611.36 and 53,997.56

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Solution

The fourth proportional to 90,321.34, 124,611.36 and 53,997.56 is: 74,497.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,321.34 : 124,611.36 = 53,997.56 : x
  2. Step 2: Convert to fraction form
    90,321.34/124,611.36 = 53,997.56/x
  3. Step 3: Cross multiply
    90,321.34x = 124,611.36 × 53,997.56
  4. Step 4: Simplify right side
    90,321.34x = 6,728,709,388.28
  5. Step 5: Solve for x
    x = 6,728,709,388.28/90,321.34
  6. Step 6: Final answer
    x = 74,497.45

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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.