Home / 74,003.80-102,125.04-40,012.05

Finding the Fourth Proportional to 74,003.80, 102,125.04 and 40,012.05

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Solution

The fourth proportional to 74,003.80, 102,125.04 and 40,012.05 is: 55,216.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,003.80 : 102,125.04 = 40,012.05 : x
  2. Step 2: Convert to fraction form
    74,003.80/102,125.04 = 40,012.05/x
  3. Step 3: Cross multiply
    74,003.80x = 102,125.04 × 40,012.05
  4. Step 4: Simplify right side
    74,003.80x = 4,086,232,321.23
  5. Step 5: Solve for x
    x = 4,086,232,321.23/74,003.80
  6. Step 6: Final answer
    x = 55,216.52

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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.