Home / 51,380.40-77,092.20-28,023.60

Finding the Fourth Proportional to 51,380.40, 77,092.20 and 28,023.60

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Solution

The fourth proportional to 51,380.40, 77,092.20 and 28,023.60 is: 42,047.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,380.40 : 77,092.20 = 28,023.60 : x
  2. Step 2: Convert to fraction form
    51,380.40/77,092.20 = 28,023.60/x
  3. Step 3: Cross multiply
    51,380.40x = 77,092.20 × 28,023.60
  4. Step 4: Simplify right side
    51,380.40x = 2,160,400,975.92
  5. Step 5: Solve for x
    x = 2,160,400,975.92/51,380.40
  6. Step 6: Final answer
    x = 42,047.18

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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.