Home / 74,708.04-103,099.71-40,719.36

Finding the Fourth Proportional to 74,708.04, 103,099.71 and 40,719.36

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Solution

The fourth proportional to 74,708.04, 103,099.71 and 40,719.36 is: 56,194.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,708.04 : 103,099.71 = 40,719.36 : x
  2. Step 2: Convert to fraction form
    74,708.04/103,099.71 = 40,719.36/x
  3. Step 3: Cross multiply
    74,708.04x = 103,099.71 × 40,719.36
  4. Step 4: Simplify right side
    74,708.04x = 4,198,154,207.39
  5. Step 5: Solve for x
    x = 4,198,154,207.39/74,708.04
  6. Step 6: Final answer
    x = 56,194.14

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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.