Home / 51,469.12-77,240.60-21,907.72

Finding the Fourth Proportional to 51,469.12, 77,240.60 and 21,907.72

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Solution

The fourth proportional to 51,469.12, 77,240.60 and 21,907.72 is: 32,877.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,469.12 : 77,240.60 = 21,907.72 : x
  2. Step 2: Convert to fraction form
    51,469.12/77,240.60 = 21,907.72/x
  3. Step 3: Cross multiply
    51,469.12x = 77,240.60 × 21,907.72
  4. Step 4: Simplify right side
    51,469.12x = 1,692,165,437.43
  5. Step 5: Solve for x
    x = 1,692,165,437.43/51,469.12
  6. Step 6: Final answer
    x = 32,877.29

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1.5x scale

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.