Home / 72,529.46-100,090.39-40,698.29

Finding the Fourth Proportional to 72,529.46, 100,090.39 and 40,698.29

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Solution

The fourth proportional to 72,529.46, 100,090.39 and 40,698.29 is: 56,163.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,529.46 : 100,090.39 = 40,698.29 : x
  2. Step 2: Convert to fraction form
    72,529.46/100,090.39 = 40,698.29/x
  3. Step 3: Cross multiply
    72,529.46x = 100,090.39 × 40,698.29
  4. Step 4: Simplify right side
    72,529.46x = 4,073,507,014.49
  5. Step 5: Solve for x
    x = 4,073,507,014.49/72,529.46
  6. Step 6: Final answer
    x = 56,163.48

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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.