Home / 72,006.54-107,996.82-19,403.74

Finding the Fourth Proportional to 72,006.54, 107,996.82 and 19,403.74

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Solution

The fourth proportional to 72,006.54, 107,996.82 and 19,403.74 is: 29,102.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,006.54 : 107,996.82 = 19,403.74 : x
  2. Step 2: Convert to fraction form
    72,006.54/107,996.82 = 19,403.74/x
  3. Step 3: Cross multiply
    72,006.54x = 107,996.82 × 19,403.74
  4. Step 4: Simplify right side
    72,006.54x = 2,095,542,216.11
  5. Step 5: Solve for x
    x = 2,095,542,216.11/72,006.54
  6. Step 6: Final answer
    x = 29,102.11

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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.