Home / 51,403.29-77,111.09-18,116.46

Finding the Fourth Proportional to 51,403.29, 77,111.09 and 18,116.46

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Solution

The fourth proportional to 51,403.29, 77,111.09 and 18,116.46 is: 27,176.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,403.29 : 77,111.09 = 18,116.46 : x
  2. Step 2: Convert to fraction form
    51,403.29/77,111.09 = 18,116.46/x
  3. Step 3: Cross multiply
    51,403.29x = 77,111.09 × 18,116.46
  4. Step 4: Simplify right side
    51,403.29x = 1,396,979,886.96
  5. Step 5: Solve for x
    x = 1,396,979,886.96/51,403.29
  6. Step 6: Final answer
    x = 27,176.86

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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.