Home / 54,390.81-74,919.47-38,447.85

Finding the Fourth Proportional to 54,390.81, 74,919.47 and 38,447.85

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Solution

The fourth proportional to 54,390.81, 74,919.47 and 38,447.85 is: 52,959.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,390.81 : 74,919.47 = 38,447.85 : x
  2. Step 2: Convert to fraction form
    54,390.81/74,919.47 = 38,447.85/x
  3. Step 3: Cross multiply
    54,390.81x = 74,919.47 × 38,447.85
  4. Step 4: Simplify right side
    54,390.81x = 2,880,492,544.64
  5. Step 5: Solve for x
    x = 2,880,492,544.64/54,390.81
  6. Step 6: Final answer
    x = 52,959.18

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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.