Home / 51,121.20-70,551.66-28,459.44

Finding the Fourth Proportional to 51,121.20, 70,551.66 and 28,459.44

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Solution

The fourth proportional to 51,121.20, 70,551.66 and 28,459.44 is: 39,276.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,121.20 : 70,551.66 = 28,459.44 : x
  2. Step 2: Convert to fraction form
    51,121.20/70,551.66 = 28,459.44/x
  3. Step 3: Cross multiply
    51,121.20x = 70,551.66 × 28,459.44
  4. Step 4: Simplify right side
    51,121.20x = 2,007,860,734.67
  5. Step 5: Solve for x
    x = 2,007,860,734.67/51,121.20
  6. Step 6: Final answer
    x = 39,276.48

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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.