Home / 54,351.87-75,004.41-30,478.02

Finding the Fourth Proportional to 54,351.87, 75,004.41 and 30,478.02

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Solution

The fourth proportional to 54,351.87, 75,004.41 and 30,478.02 is: 42,059.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,351.87 : 75,004.41 = 30,478.02 : x
  2. Step 2: Convert to fraction form
    54,351.87/75,004.41 = 30,478.02/x
  3. Step 3: Cross multiply
    54,351.87x = 75,004.41 × 30,478.02
  4. Step 4: Simplify right side
    54,351.87x = 2,285,985,908.07
  5. Step 5: Solve for x
    x = 2,285,985,908.07/54,351.87
  6. Step 6: Final answer
    x = 42,059.01

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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.