Home / 45,150.57-67,728.29-18,828.81

Finding the Fourth Proportional to 45,150.57, 67,728.29 and 18,828.81

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Solution

The fourth proportional to 45,150.57, 67,728.29 and 18,828.81 is: 28,244.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,150.57 : 67,728.29 = 18,828.81 : x
  2. Step 2: Convert to fraction form
    45,150.57/67,728.29 = 18,828.81/x
  3. Step 3: Cross multiply
    45,150.57x = 67,728.29 × 18,828.81
  4. Step 4: Simplify right side
    45,150.57x = 1,275,243,009.89
  5. Step 5: Solve for x
    x = 1,275,243,009.89/45,150.57
  6. Step 6: Final answer
    x = 28,244.23

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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.