Home / 72,627.20-100,222.40-42,414.24

Finding the Fourth Proportional to 72,627.20, 100,222.40 and 42,414.24

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Solution

The fourth proportional to 72,627.20, 100,222.40 and 42,414.24 is: 58,529.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,627.20 : 100,222.40 = 42,414.24 : x
  2. Step 2: Convert to fraction form
    72,627.20/100,222.40 = 42,414.24/x
  3. Step 3: Cross multiply
    72,627.20x = 100,222.40 × 42,414.24
  4. Step 4: Simplify right side
    72,627.20x = 4,250,856,926.98
  5. Step 5: Solve for x
    x = 4,250,856,926.98/72,627.20
  6. Step 6: Final answer
    x = 58,529.82

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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.