Home / 70,267.64-105,232.56-40,190.72

Finding the Fourth Proportional to 70,267.64, 105,232.56 and 40,190.72

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Solution

The fourth proportional to 70,267.64, 105,232.56 and 40,190.72 is: 60,189.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,267.64 : 105,232.56 = 40,190.72 : x
  2. Step 2: Convert to fraction form
    70,267.64/105,232.56 = 40,190.72/x
  3. Step 3: Cross multiply
    70,267.64x = 105,232.56 × 40,190.72
  4. Step 4: Simplify right side
    70,267.64x = 4,229,372,616.92
  5. Step 5: Solve for x
    x = 4,229,372,616.92/70,267.64
  6. Step 6: Final answer
    x = 60,189.48

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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.