Home / 74,712.14-103,099.73-40,719.89

Finding the Fourth Proportional to 74,712.14, 103,099.73 and 40,719.89

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Solution

The fourth proportional to 74,712.14, 103,099.73 and 40,719.89 is: 56,191.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,712.14 : 103,099.73 = 40,719.89 : x
  2. Step 2: Convert to fraction form
    74,712.14/103,099.73 = 40,719.89/x
  3. Step 3: Cross multiply
    74,712.14x = 103,099.73 × 40,719.89
  4. Step 4: Simplify right side
    74,712.14x = 4,198,209,664.63
  5. Step 5: Solve for x
    x = 4,198,209,664.63/74,712.14
  6. Step 6: Final answer
    x = 56,191.80

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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.