Home / 54,557.28-75,288.42-30,684.15

Finding the Fourth Proportional to 54,557.28, 75,288.42 and 30,684.15

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Solution

The fourth proportional to 54,557.28, 75,288.42 and 30,684.15 is: 42,343.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,557.28 : 75,288.42 = 30,684.15 : x
  2. Step 2: Convert to fraction form
    54,557.28/75,288.42 = 30,684.15/x
  3. Step 3: Cross multiply
    54,557.28x = 75,288.42 × 30,684.15
  4. Step 4: Simplify right side
    54,557.28x = 2,310,161,172.54
  5. Step 5: Solve for x
    x = 2,310,161,172.54/54,557.28
  6. Step 6: Final answer
    x = 42,343.77

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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.