Home / 54,499-75,207.96-30,629.72

Finding the Fourth Proportional to 54,499, 75,207.96 and 30,629.72

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Solution

The fourth proportional to 54,499, 75,207.96 and 30,629.72 is: 42,268.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,499 : 75,207.96 = 30,629.72 : x
  2. Step 2: Convert to fraction form
    54,499/75,207.96 = 30,629.72/x
  3. Step 3: Cross multiply
    54,499x = 75,207.96 × 30,629.72
  4. Step 4: Simplify right side
    54,499x = 2,303,598,756.57
  5. Step 5: Solve for x
    x = 2,303,598,756.57/54,499
  6. Step 6: Final answer
    x = 42,268.64

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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.