Home / 74,330.28-102,575.85-40,338.77

Finding the Fourth Proportional to 74,330.28, 102,575.85 and 40,338.77

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Solution

The fourth proportional to 74,330.28, 102,575.85 and 40,338.77 is: 55,667.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,330.28 : 102,575.85 = 40,338.77 : x
  2. Step 2: Convert to fraction form
    74,330.28/102,575.85 = 40,338.77/x
  3. Step 3: Cross multiply
    74,330.28x = 102,575.85 × 40,338.77
  4. Step 4: Simplify right side
    74,330.28x = 4,137,784,028.41
  5. Step 5: Solve for x
    x = 4,137,784,028.41/74,330.28
  6. Step 6: Final answer
    x = 55,667.54

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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.