Home / 74,163.52-102,344.64-40,629.76

Finding the Fourth Proportional to 74,163.52, 102,344.64 and 40,629.76

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Solution

The fourth proportional to 74,163.52, 102,344.64 and 40,629.76 is: 56,068.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,163.52 : 102,344.64 = 40,629.76 : x
  2. Step 2: Convert to fraction form
    74,163.52/102,344.64 = 40,629.76/x
  3. Step 3: Cross multiply
    74,163.52x = 102,344.64 × 40,629.76
  4. Step 4: Simplify right side
    74,163.52x = 4,158,238,160.49
  5. Step 5: Solve for x
    x = 4,158,238,160.49/74,163.52
  6. Step 6: Final answer
    x = 56,068.51

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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.