Home / 51,235.48-76,865.10-20,071

Finding the Fourth Proportional to 51,235.48, 76,865.10 and 20,071

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Solution

The fourth proportional to 51,235.48, 76,865.10 and 20,071 is: 30,111.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,235.48 : 76,865.10 = 20,071 : x
  2. Step 2: Convert to fraction form
    51,235.48/76,865.10 = 20,071/x
  3. Step 3: Cross multiply
    51,235.48x = 76,865.10 × 20,071
  4. Step 4: Simplify right side
    51,235.48x = 1,542,759,422.10
  5. Step 5: Solve for x
    x = 1,542,759,422.10/51,235.48
  6. Step 6: Final answer
    x = 30,111.15

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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.