Home / 74,329.27-102,575.14-40,338.05

Finding the Fourth Proportional to 74,329.27, 102,575.14 and 40,338.05

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Solution

The fourth proportional to 74,329.27, 102,575.14 and 40,338.05 is: 55,666.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,329.27 : 102,575.14 = 40,338.05 : x
  2. Step 2: Convert to fraction form
    74,329.27/102,575.14 = 40,338.05/x
  3. Step 3: Cross multiply
    74,329.27x = 102,575.14 × 40,338.05
  4. Step 4: Simplify right side
    74,329.27x = 4,137,680,906.60
  5. Step 5: Solve for x
    x = 4,137,680,906.60/74,329.27
  6. Step 6: Final answer
    x = 55,666.91

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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.