Home / 72,571.14-100,148.30-40,740.27

Finding the Fourth Proportional to 72,571.14, 100,148.30 and 40,740.27

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Solution

The fourth proportional to 72,571.14, 100,148.30 and 40,740.27 is: 56,221.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,571.14 : 100,148.30 = 40,740.27 : x
  2. Step 2: Convert to fraction form
    72,571.14/100,148.30 = 40,740.27/x
  3. Step 3: Cross multiply
    72,571.14x = 100,148.30 × 40,740.27
  4. Step 4: Simplify right side
    72,571.14x = 4,080,068,355.56
  5. Step 5: Solve for x
    x = 4,080,068,355.56/72,571.14
  6. Step 6: Final answer
    x = 56,221.64

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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.