Home / 74,065.86-110,969.19-61,665.57

Finding the Fourth Proportional to 74,065.86, 110,969.19 and 61,665.57

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Solution

The fourth proportional to 74,065.86, 110,969.19 and 61,665.57 is: 92,390.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,065.86 : 110,969.19 = 61,665.57 : x
  2. Step 2: Convert to fraction form
    74,065.86/110,969.19 = 61,665.57/x
  3. Step 3: Cross multiply
    74,065.86x = 110,969.19 × 61,665.57
  4. Step 4: Simplify right side
    74,065.86x = 6,842,978,353.79
  5. Step 5: Solve for x
    x = 6,842,978,353.79/74,065.86
  6. Step 6: Final answer
    x = 92,390.45

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.