Home / 74,375.19-102,551.04-55,479.51

Finding the Fourth Proportional to 74,375.19, 102,551.04 and 55,479.51

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Solution

The fourth proportional to 74,375.19, 102,551.04 and 55,479.51 is: 76,497.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,375.19 : 102,551.04 = 55,479.51 : x
  2. Step 2: Convert to fraction form
    74,375.19/102,551.04 = 55,479.51/x
  3. Step 3: Cross multiply
    74,375.19x = 102,551.04 × 55,479.51
  4. Step 4: Simplify right side
    74,375.19x = 5,689,481,449.19
  5. Step 5: Solve for x
    x = 5,689,481,449.19/74,375.19
  6. Step 6: Final answer
    x = 76,497.03

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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.