Home / 74,449.37-102,740.55-40,458.14

Finding the Fourth Proportional to 74,449.37, 102,740.55 and 40,458.14

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Solution

The fourth proportional to 74,449.37, 102,740.55 and 40,458.14 is: 55,832.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,449.37 : 102,740.55 = 40,458.14 : x
  2. Step 2: Convert to fraction form
    74,449.37/102,740.55 = 40,458.14/x
  3. Step 3: Cross multiply
    74,449.37x = 102,740.55 × 40,458.14
  4. Step 4: Simplify right side
    74,449.37x = 4,156,691,555.58
  5. Step 5: Solve for x
    x = 4,156,691,555.58/74,449.37
  6. Step 6: Final answer
    x = 55,832.46

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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.