Home / 74,390.94-102,652.38-42,127.02

Finding the Fourth Proportional to 74,390.94, 102,652.38 and 42,127.02

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Solution

The fourth proportional to 74,390.94, 102,652.38 and 42,127.02 is: 58,131.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,390.94 : 102,652.38 = 42,127.02 : x
  2. Step 2: Convert to fraction form
    74,390.94/102,652.38 = 42,127.02/x
  3. Step 3: Cross multiply
    74,390.94x = 102,652.38 × 42,127.02
  4. Step 4: Simplify right side
    74,390.94x = 4,324,438,865.31
  5. Step 5: Solve for x
    x = 4,324,438,865.31/74,390.94
  6. Step 6: Final answer
    x = 58,131.26

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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.