Home / 51,719.02-77,561.58-20,126.86

Finding the Fourth Proportional to 51,719.02, 77,561.58 and 20,126.86

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Solution

The fourth proportional to 51,719.02, 77,561.58 and 20,126.86 is: 30,183.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,719.02 : 77,561.58 = 20,126.86 : x
  2. Step 2: Convert to fraction form
    51,719.02/77,561.58 = 20,126.86/x
  3. Step 3: Cross multiply
    51,719.02x = 77,561.58 × 20,126.86
  4. Step 4: Simplify right side
    51,719.02x = 1,561,071,062.04
  5. Step 5: Solve for x
    x = 1,561,071,062.04/51,719.02
  6. Step 6: Final answer
    x = 30,183.69

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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.