Home / 74,724.84-103,119.08-40,734.68

Finding the Fourth Proportional to 74,724.84, 103,119.08 and 40,734.68

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Solution

The fourth proportional to 74,724.84, 103,119.08 and 40,734.68 is: 56,213.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,724.84 : 103,119.08 = 40,734.68 : x
  2. Step 2: Convert to fraction form
    74,724.84/103,119.08 = 40,734.68/x
  3. Step 3: Cross multiply
    74,724.84x = 103,119.08 × 40,734.68
  4. Step 4: Simplify right side
    74,724.84x = 4,200,522,006.43
  5. Step 5: Solve for x
    x = 4,200,522,006.43/74,724.84
  6. Step 6: Final answer
    x = 56,213.20

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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.