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Finding the Fourth Proportional to 51,489.96, 77,242.85 and 21,899.85

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Solution

The fourth proportional to 51,489.96, 77,242.85 and 21,899.85 is: 32,853.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,489.96 : 77,242.85 = 21,899.85 : x
  2. Step 2: Convert to fraction form
    51,489.96/77,242.85 = 21,899.85/x
  3. Step 3: Cross multiply
    51,489.96x = 77,242.85 × 21,899.85
  4. Step 4: Simplify right side
    51,489.96x = 1,691,606,719.07
  5. Step 5: Solve for x
    x = 1,691,606,719.07/51,489.96
  6. Step 6: Final answer
    x = 32,853.14

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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.