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Finding the Fourth Proportional to 51,995.60, 78,009.07 and 21,994.41

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Solution

The fourth proportional to 51,995.60, 78,009.07 and 21,994.41 is: 32,998.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,995.60 : 78,009.07 = 21,994.41 : x
  2. Step 2: Convert to fraction form
    51,995.60/78,009.07 = 21,994.41/x
  3. Step 3: Cross multiply
    51,995.60x = 78,009.07 × 21,994.41
  4. Step 4: Simplify right side
    51,995.60x = 1,715,763,291.68
  5. Step 5: Solve for x
    x = 1,715,763,291.68/51,995.60
  6. Step 6: Final answer
    x = 32,998.24

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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.