Home / 74,716.12-103,107.59-40,724.61

Finding the Fourth Proportional to 74,716.12, 103,107.59 and 40,724.61

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Solution

The fourth proportional to 74,716.12, 103,107.59 and 40,724.61 is: 56,199.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,716.12 : 103,107.59 = 40,724.61 : x
  2. Step 2: Convert to fraction form
    74,716.12/103,107.59 = 40,724.61/x
  3. Step 3: Cross multiply
    74,716.12x = 103,107.59 × 40,724.61
  4. Step 4: Simplify right side
    74,716.12x = 4,199,015,953.23
  5. Step 5: Solve for x
    x = 4,199,015,953.23/74,716.12
  6. Step 6: Final answer
    x = 56,199.60

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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.