Home / 74,189.54-102,381.43-40,198.95

Finding the Fourth Proportional to 74,189.54, 102,381.43 and 40,198.95

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Solution

The fourth proportional to 74,189.54, 102,381.43 and 40,198.95 is: 55,474.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,189.54 : 102,381.43 = 40,198.95 : x
  2. Step 2: Convert to fraction form
    74,189.54/102,381.43 = 40,198.95/x
  3. Step 3: Cross multiply
    74,189.54x = 102,381.43 × 40,198.95
  4. Step 4: Simplify right side
    74,189.54x = 4,115,625,985.50
  5. Step 5: Solve for x
    x = 4,115,625,985.50/74,189.54
  6. Step 6: Final answer
    x = 55,474.48

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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.