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Finding the Fourth Proportional to 51,606.76, 77,400.42 and 20,016.76

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Solution

The fourth proportional to 51,606.76, 77,400.42 and 20,016.76 is: 30,021.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,606.76 : 77,400.42 = 20,016.76 : x
  2. Step 2: Convert to fraction form
    51,606.76/77,400.42 = 20,016.76/x
  3. Step 3: Cross multiply
    51,606.76x = 77,400.42 × 20,016.76
  4. Step 4: Simplify right side
    51,606.76x = 1,549,305,631.04
  5. Step 5: Solve for x
    x = 1,549,305,631.04/51,606.76
  6. Step 6: Final answer
    x = 30,021.37

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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.