Home / 74,030.48-102,163.56-40,498.64

Finding the Fourth Proportional to 74,030.48, 102,163.56 and 40,498.64

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Solution

The fourth proportional to 74,030.48, 102,163.56 and 40,498.64 is: 55,888.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,030.48 : 102,163.56 = 40,498.64 : x
  2. Step 2: Convert to fraction form
    74,030.48/102,163.56 = 40,498.64/x
  3. Step 3: Cross multiply
    74,030.48x = 102,163.56 × 40,498.64
  4. Step 4: Simplify right side
    74,030.48x = 4,137,485,237.56
  5. Step 5: Solve for x
    x = 4,137,485,237.56/74,030.48
  6. Step 6: Final answer
    x = 55,888.94

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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.