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Finding the Fourth Proportional to 51,989.95, 77,990.39 and 16,932.34

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Solution

The fourth proportional to 51,989.95, 77,990.39 and 16,932.34 is: 25,400.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,989.95 : 77,990.39 = 16,932.34 : x
  2. Step 2: Convert to fraction form
    51,989.95/77,990.39 = 16,932.34/x
  3. Step 3: Cross multiply
    51,989.95x = 77,990.39 × 16,932.34
  4. Step 4: Simplify right side
    51,989.95x = 1,320,559,325.60
  5. Step 5: Solve for x
    x = 1,320,559,325.60/51,989.95
  6. Step 6: Final answer
    x = 25,400.28

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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.