Home / 74,132.72-102,303.20-40,141.44

Finding the Fourth Proportional to 74,132.72, 102,303.20 and 40,141.44

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Solution

The fourth proportional to 74,132.72, 102,303.20 and 40,141.44 is: 55,395.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,132.72 : 102,303.20 = 40,141.44 : x
  2. Step 2: Convert to fraction form
    74,132.72/102,303.20 = 40,141.44/x
  3. Step 3: Cross multiply
    74,132.72x = 102,303.20 × 40,141.44
  4. Step 4: Simplify right side
    74,132.72x = 4,106,597,764.61
  5. Step 5: Solve for x
    x = 4,106,597,764.61/74,132.72
  6. Step 6: Final answer
    x = 55,395.21

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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.