Home / 30,074.51-45,105.18-10,086.81

Finding the Fourth Proportional to 30,074.51, 45,105.18 and 10,086.81

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Solution

The fourth proportional to 30,074.51, 45,105.18 and 10,086.81 is: 15,128.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,074.51 : 45,105.18 = 10,086.81 : x
  2. Step 2: Convert to fraction form
    30,074.51/45,105.18 = 10,086.81/x
  3. Step 3: Cross multiply
    30,074.51x = 45,105.18 × 10,086.81
  4. Step 4: Simplify right side
    30,074.51x = 454,967,380.68
  5. Step 5: Solve for x
    x = 454,967,380.68/30,074.51
  6. Step 6: Final answer
    x = 15,128.01

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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.