Home / 56,122.56-77,448.42-30,970.44

Finding the Fourth Proportional to 56,122.56, 77,448.42 and 30,970.44

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Solution

The fourth proportional to 56,122.56, 77,448.42 and 30,970.44 is: 42,738.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,122.56 : 77,448.42 = 30,970.44 : x
  2. Step 2: Convert to fraction form
    56,122.56/77,448.42 = 30,970.44/x
  3. Step 3: Cross multiply
    56,122.56x = 77,448.42 × 30,970.44
  4. Step 4: Simplify right side
    56,122.56x = 2,398,611,644.70
  5. Step 5: Solve for x
    x = 2,398,611,644.70/56,122.56
  6. Step 6: Final answer
    x = 42,738.81

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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.