Home / 51,899.74-77,837.66-20,310.55

Finding the Fourth Proportional to 51,899.74, 77,837.66 and 20,310.55

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Solution

The fourth proportional to 51,899.74, 77,837.66 and 20,310.55 is: 30,461.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,899.74 : 77,837.66 = 20,310.55 : x
  2. Step 2: Convert to fraction form
    51,899.74/77,837.66 = 20,310.55/x
  3. Step 3: Cross multiply
    51,899.74x = 77,837.66 × 20,310.55
  4. Step 4: Simplify right side
    51,899.74x = 1,580,925,465.33
  5. Step 5: Solve for x
    x = 1,580,925,465.33/51,899.74
  6. Step 6: Final answer
    x = 30,461.15

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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.