Home / 74,340.58-102,448.26-72,974.20

Finding the Fourth Proportional to 74,340.58, 102,448.26 and 72,974.20

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Solution

The fourth proportional to 74,340.58, 102,448.26 and 72,974.20 is: 100,565.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,340.58 : 102,448.26 = 72,974.20 : x
  2. Step 2: Convert to fraction form
    74,340.58/102,448.26 = 72,974.20/x
  3. Step 3: Cross multiply
    74,340.58x = 102,448.26 × 72,974.20
  4. Step 4: Simplify right side
    74,340.58x = 7,476,079,814.89
  5. Step 5: Solve for x
    x = 7,476,079,814.89/74,340.58
  6. Step 6: Final answer
    x = 100,565.26

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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.