Home / 53,902.20-80,853.30-18,838.20

Finding the Fourth Proportional to 53,902.20, 80,853.30 and 18,838.20

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Solution

The fourth proportional to 53,902.20, 80,853.30 and 18,838.20 is: 28,257.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,902.20 : 80,853.30 = 18,838.20 : x
  2. Step 2: Convert to fraction form
    53,902.20/80,853.30 = 18,838.20/x
  3. Step 3: Cross multiply
    53,902.20x = 80,853.30 × 18,838.20
  4. Step 4: Simplify right side
    53,902.20x = 1,523,130,636.06
  5. Step 5: Solve for x
    x = 1,523,130,636.06/53,902.20
  6. Step 6: Final answer
    x = 28,257.30

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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.