Home / 47,998.20-72,029.70-28,255.80

Finding the Fourth Proportional to 47,998.20, 72,029.70 and 28,255.80

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Solution

The fourth proportional to 47,998.20, 72,029.70 and 28,255.80 is: 42,402.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,998.20 : 72,029.70 = 28,255.80 : x
  2. Step 2: Convert to fraction form
    47,998.20/72,029.70 = 28,255.80/x
  3. Step 3: Cross multiply
    47,998.20x = 72,029.70 × 28,255.80
  4. Step 4: Simplify right side
    47,998.20x = 2,035,256,797.26
  5. Step 5: Solve for x
    x = 2,035,256,797.26/47,998.20
  6. Step 6: Final answer
    x = 42,402.77

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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.