Home / 50,851.40-70,171.11-28,188.20

Finding the Fourth Proportional to 50,851.40, 70,171.11 and 28,188.20

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Solution

The fourth proportional to 50,851.40, 70,171.11 and 28,188.20 is: 38,897.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,851.40 : 70,171.11 = 28,188.20 : x
  2. Step 2: Convert to fraction form
    50,851.40/70,171.11 = 28,188.20/x
  3. Step 3: Cross multiply
    50,851.40x = 70,171.11 × 28,188.20
  4. Step 4: Simplify right side
    50,851.40x = 1,977,997,458.33
  5. Step 5: Solve for x
    x = 1,977,997,458.33/50,851.40
  6. Step 6: Final answer
    x = 38,897.60

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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.