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Finding the Fourth Proportional to 73,389.78, 110,085.66 and 20,799.18

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Solution

The fourth proportional to 73,389.78, 110,085.66 and 20,799.18 is: 31,199.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,389.78 : 110,085.66 = 20,799.18 : x
  2. Step 2: Convert to fraction form
    73,389.78/110,085.66 = 20,799.18/x
  3. Step 3: Cross multiply
    73,389.78x = 110,085.66 × 20,799.18
  4. Step 4: Simplify right side
    73,389.78x = 2,289,691,457.76
  5. Step 5: Solve for x
    x = 2,289,691,457.76/73,389.78
  6. Step 6: Final answer
    x = 31,199.05

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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.