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Finding the Fourth Proportional to 40,166.92, 60,287.78 and 20,460.30

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Solution

The fourth proportional to 40,166.92, 60,287.78 and 20,460.30 is: 30,709.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,166.92 : 60,287.78 = 20,460.30 : x
  2. Step 2: Convert to fraction form
    40,166.92/60,287.78 = 20,460.30/x
  3. Step 3: Cross multiply
    40,166.92x = 60,287.78 × 20,460.30
  4. Step 4: Simplify right side
    40,166.92x = 1,233,506,065.13
  5. Step 5: Solve for x
    x = 1,233,506,065.13/40,166.92
  6. Step 6: Final answer
    x = 30,709.50

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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.