Home / 54,621.72-75,378.06-30,748.60

Finding the Fourth Proportional to 54,621.72, 75,378.06 and 30,748.60

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Solution

The fourth proportional to 54,621.72, 75,378.06 and 30,748.60 is: 42,433.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,621.72 : 75,378.06 = 30,748.60 : x
  2. Step 2: Convert to fraction form
    54,621.72/75,378.06 = 30,748.60/x
  3. Step 3: Cross multiply
    54,621.72x = 75,378.06 × 30,748.60
  4. Step 4: Simplify right side
    54,621.72x = 2,317,769,815.72
  5. Step 5: Solve for x
    x = 2,317,769,815.72/54,621.72
  6. Step 6: Final answer
    x = 42,433.12

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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.