Home / 51,255.21-76,886.06-21,669.15

Finding the Fourth Proportional to 51,255.21, 76,886.06 and 21,669.15

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Solution

The fourth proportional to 51,255.21, 76,886.06 and 21,669.15 is: 32,505.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,255.21 : 76,886.06 = 21,669.15 : x
  2. Step 2: Convert to fraction form
    51,255.21/76,886.06 = 21,669.15/x
  3. Step 3: Cross multiply
    51,255.21x = 76,886.06 × 21,669.15
  4. Step 4: Simplify right side
    51,255.21x = 1,666,055,567.05
  5. Step 5: Solve for x
    x = 1,666,055,567.05/51,255.21
  6. Step 6: Final answer
    x = 32,505.10

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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.