Home / 30,502.32-45,550.49-30,172.45

Finding the Fourth Proportional to 30,502.32, 45,550.49 and 30,172.45

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Solution

The fourth proportional to 30,502.32, 45,550.49 and 30,172.45 is: 45,057.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,502.32 : 45,550.49 = 30,172.45 : x
  2. Step 2: Convert to fraction form
    30,502.32/45,550.49 = 30,172.45/x
  3. Step 3: Cross multiply
    30,502.32x = 45,550.49 × 30,172.45
  4. Step 4: Simplify right side
    30,502.32x = 1,374,369,843.56
  5. Step 5: Solve for x
    x = 1,374,369,843.56/30,502.32
  6. Step 6: Final answer
    x = 45,057.88

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.