Home / 79,268.53-109,386.41-45,270.31

Finding the Fourth Proportional to 79,268.53, 109,386.41 and 45,270.31

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Solution

The fourth proportional to 79,268.53, 109,386.41 and 45,270.31 is: 62,470.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,268.53 : 109,386.41 = 45,270.31 : x
  2. Step 2: Convert to fraction form
    79,268.53/109,386.41 = 45,270.31/x
  3. Step 3: Cross multiply
    79,268.53x = 109,386.41 × 45,270.31
  4. Step 4: Simplify right side
    79,268.53x = 4,951,956,690.49
  5. Step 5: Solve for x
    x = 4,951,956,690.49/79,268.53
  6. Step 6: Final answer
    x = 62,470.65

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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.