Home / 74,467.40-102,763.86-40,932.68

Finding the Fourth Proportional to 74,467.40, 102,763.86 and 40,932.68

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Solution

The fourth proportional to 74,467.40, 102,763.86 and 40,932.68 is: 56,486.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,467.40 : 102,763.86 = 40,932.68 : x
  2. Step 2: Convert to fraction form
    74,467.40/102,763.86 = 40,932.68/x
  3. Step 3: Cross multiply
    74,467.40x = 102,763.86 × 40,932.68
  4. Step 4: Simplify right side
    74,467.40x = 4,206,400,196.94
  5. Step 5: Solve for x
    x = 4,206,400,196.94/74,467.40
  6. Step 6: Final answer
    x = 56,486.47

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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.