Home / 50,985.21-70,363.26-28,331.55

Finding the Fourth Proportional to 50,985.21, 70,363.26 and 28,331.55

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Solution

The fourth proportional to 50,985.21, 70,363.26 and 28,331.55 is: 39,099.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,985.21 : 70,363.26 = 28,331.55 : x
  2. Step 2: Convert to fraction form
    50,985.21/70,363.26 = 28,331.55/x
  3. Step 3: Cross multiply
    50,985.21x = 70,363.26 × 28,331.55
  4. Step 4: Simplify right side
    50,985.21x = 1,993,500,218.85
  5. Step 5: Solve for x
    x = 1,993,500,218.85/50,985.21
  6. Step 6: Final answer
    x = 39,099.58

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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.