Home / 72,837.06-109,255.63-20,247

Finding the Fourth Proportional to 72,837.06, 109,255.63 and 20,247

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Solution

The fourth proportional to 72,837.06, 109,255.63 and 20,247 is: 30,370.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,837.06 : 109,255.63 = 20,247 : x
  2. Step 2: Convert to fraction form
    72,837.06/109,255.63 = 20,247/x
  3. Step 3: Cross multiply
    72,837.06x = 109,255.63 × 20,247
  4. Step 4: Simplify right side
    72,837.06x = 2,212,098,740.61
  5. Step 5: Solve for x
    x = 2,212,098,740.61/72,837.06
  6. Step 6: Final answer
    x = 30,370.51

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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.