Home / 74,108.25-102,269.39-40,574.25

Finding the Fourth Proportional to 74,108.25, 102,269.39 and 40,574.25

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Solution

The fourth proportional to 74,108.25, 102,269.39 and 40,574.25 is: 55,992.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,108.25 : 102,269.39 = 40,574.25 : x
  2. Step 2: Convert to fraction form
    74,108.25/102,269.39 = 40,574.25/x
  3. Step 3: Cross multiply
    74,108.25x = 102,269.39 × 40,574.25
  4. Step 4: Simplify right side
    74,108.25x = 4,149,503,594.34
  5. Step 5: Solve for x
    x = 4,149,503,594.34/74,108.25
  6. Step 6: Final answer
    x = 55,992.47

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1.5x scale

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.