Home / 74,115.42-102,278.30-42,284.84

Finding the Fourth Proportional to 74,115.42, 102,278.30 and 42,284.84

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Solution

The fourth proportional to 74,115.42, 102,278.30 and 42,284.84 is: 58,352.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,115.42 : 102,278.30 = 42,284.84 : x
  2. Step 2: Convert to fraction form
    74,115.42/102,278.30 = 42,284.84/x
  3. Step 3: Cross multiply
    74,115.42x = 102,278.30 × 42,284.84
  4. Step 4: Simplify right side
    74,115.42x = 4,324,821,550.97
  5. Step 5: Solve for x
    x = 4,324,821,550.97/74,115.42
  6. Step 6: Final answer
    x = 58,352.52

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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.