Home / 51,720.64-71,382.18-31,589.08

Finding the Fourth Proportional to 51,720.64, 71,382.18 and 31,589.08

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Solution

The fourth proportional to 51,720.64, 71,382.18 and 31,589.08 is: 43,597.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,720.64 : 71,382.18 = 31,589.08 : x
  2. Step 2: Convert to fraction form
    51,720.64/71,382.18 = 31,589.08/x
  3. Step 3: Cross multiply
    51,720.64x = 71,382.18 × 31,589.08
  4. Step 4: Simplify right side
    51,720.64x = 2,254,897,394.59
  5. Step 5: Solve for x
    x = 2,254,897,394.59/51,720.64
  6. Step 6: Final answer
    x = 43,597.63

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.