Home / 72,724.57-109,189.03-37,211.36

Finding the Fourth Proportional to 72,724.57, 109,189.03 and 37,211.36

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Solution

The fourth proportional to 72,724.57, 109,189.03 and 37,211.36 is: 55,869.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,724.57 : 109,189.03 = 37,211.36 : x
  2. Step 2: Convert to fraction form
    72,724.57/109,189.03 = 37,211.36/x
  3. Step 3: Cross multiply
    72,724.57x = 109,189.03 × 37,211.36
  4. Step 4: Simplify right side
    72,724.57x = 4,063,071,734.18
  5. Step 5: Solve for x
    x = 4,063,071,734.18/72,724.57
  6. Step 6: Final answer
    x = 55,869.31

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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.