Home / 51,799.29-77,687.41-20,210.19

Finding the Fourth Proportional to 51,799.29, 77,687.41 and 20,210.19

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Solution

The fourth proportional to 51,799.29, 77,687.41 and 20,210.19 is: 30,310.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,799.29 : 77,687.41 = 20,210.19 : x
  2. Step 2: Convert to fraction form
    51,799.29/77,687.41 = 20,210.19/x
  3. Step 3: Cross multiply
    51,799.29x = 77,687.41 × 20,210.19
  4. Step 4: Simplify right side
    51,799.29x = 1,570,077,316.71
  5. Step 5: Solve for x
    x = 1,570,077,316.71/51,799.29
  6. Step 6: Final answer
    x = 30,310.79

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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.