Home / 74,865.06-103,314.78-40,873.16

Finding the Fourth Proportional to 74,865.06, 103,314.78 and 40,873.16

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Solution

The fourth proportional to 74,865.06, 103,314.78 and 40,873.16 is: 56,405.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,865.06 : 103,314.78 = 40,873.16 : x
  2. Step 2: Convert to fraction form
    74,865.06/103,314.78 = 40,873.16/x
  3. Step 3: Cross multiply
    74,865.06x = 103,314.78 × 40,873.16
  4. Step 4: Simplify right side
    74,865.06x = 4,222,801,016.73
  5. Step 5: Solve for x
    x = 4,222,801,016.73/74,865.06
  6. Step 6: Final answer
    x = 56,405.50

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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.