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Finding the Fourth Proportional to 44,081.68, 66,133.70 and 20,406.30

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Solution

The fourth proportional to 44,081.68, 66,133.70 and 20,406.30 is: 30,614.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,081.68 : 66,133.70 = 20,406.30 : x
  2. Step 2: Convert to fraction form
    44,081.68/66,133.70 = 20,406.30/x
  3. Step 3: Cross multiply
    44,081.68x = 66,133.70 × 20,406.30
  4. Step 4: Simplify right side
    44,081.68x = 1,349,544,492.89
  5. Step 5: Solve for x
    x = 1,349,544,492.89/44,081.68
  6. Step 6: Final answer
    x = 30,614.63

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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.