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Finding the Fourth Proportional to 50,840.78, 70,160.78 and 28,180.26

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Solution

The fourth proportional to 50,840.78, 70,160.78 and 28,180.26 is: 38,889.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,840.78 : 70,160.78 = 28,180.26 : x
  2. Step 2: Convert to fraction form
    50,840.78/70,160.78 = 28,180.26/x
  3. Step 3: Cross multiply
    50,840.78x = 70,160.78 × 28,180.26
  4. Step 4: Simplify right side
    50,840.78x = 1,977,149,022.20
  5. Step 5: Solve for x
    x = 1,977,149,022.20/50,840.78
  6. Step 6: Final answer
    x = 38,889.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.