Home / 51,801.09-77,682.60-18,512.16

Finding the Fourth Proportional to 51,801.09, 77,682.60 and 18,512.16

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Solution

The fourth proportional to 51,801.09, 77,682.60 and 18,512.16 is: 27,761.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,801.09 : 77,682.60 = 18,512.16 : x
  2. Step 2: Convert to fraction form
    51,801.09/77,682.60 = 18,512.16/x
  3. Step 3: Cross multiply
    51,801.09x = 77,682.60 × 18,512.16
  4. Step 4: Simplify right side
    51,801.09x = 1,438,072,720.42
  5. Step 5: Solve for x
    x = 1,438,072,720.42/51,801.09
  6. Step 6: Final answer
    x = 27,761.44

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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.