Home / 51,860.18-77,820.45-21,872.54

Finding the Fourth Proportional to 51,860.18, 77,820.45 and 21,872.54

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Solution

The fourth proportional to 51,860.18, 77,820.45 and 21,872.54 is: 32,821.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,860.18 : 77,820.45 = 21,872.54 : x
  2. Step 2: Convert to fraction form
    51,860.18/77,820.45 = 21,872.54/x
  3. Step 3: Cross multiply
    51,860.18x = 77,820.45 × 21,872.54
  4. Step 4: Simplify right side
    51,860.18x = 1,702,130,905.44
  5. Step 5: Solve for x
    x = 1,702,130,905.44/51,860.18
  6. Step 6: Final answer
    x = 32,821.54

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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.