Home / 74,402.26-102,669.81-42,127.61

Finding the Fourth Proportional to 74,402.26, 102,669.81 and 42,127.61

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Solution

The fourth proportional to 74,402.26, 102,669.81 and 42,127.61 is: 58,133.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,402.26 : 102,669.81 = 42,127.61 : x
  2. Step 2: Convert to fraction form
    74,402.26/102,669.81 = 42,127.61/x
  3. Step 3: Cross multiply
    74,402.26x = 102,669.81 × 42,127.61
  4. Step 4: Simplify right side
    74,402.26x = 4,325,233,043.13
  5. Step 5: Solve for x
    x = 4,325,233,043.13/74,402.26
  6. Step 6: Final answer
    x = 58,133.09

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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.