Home / 92,014.27-138,021.20-28,839.21

Finding the Fourth Proportional to 92,014.27, 138,021.20 and 28,839.21

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Solution

The fourth proportional to 92,014.27, 138,021.20 and 28,839.21 is: 43,258.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,014.27 : 138,021.20 = 28,839.21 : x
  2. Step 2: Convert to fraction form
    92,014.27/138,021.20 = 28,839.21/x
  3. Step 3: Cross multiply
    92,014.27x = 138,021.20 × 28,839.21
  4. Step 4: Simplify right side
    92,014.27x = 3,980,422,319.11
  5. Step 5: Solve for x
    x = 3,980,422,319.11/92,014.27
  6. Step 6: Final answer
    x = 43,258.75

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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.