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Finding the Fourth Proportional to 74,108, 102,269.04 and 40,574.08

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Solution

The fourth proportional to 74,108, 102,269.04 and 40,574.08 is: 55,992.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,108 : 102,269.04 = 40,574.08 : x
  2. Step 2: Convert to fraction form
    74,108/102,269.04 = 40,574.08/x
  3. Step 3: Cross multiply
    74,108x = 102,269.04 × 40,574.08
  4. Step 4: Simplify right side
    74,108x = 4,149,472,210.48
  5. Step 5: Solve for x
    x = 4,149,472,210.48/74,108
  6. Step 6: Final answer
    x = 55,992.23

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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.