Home / 74,911.49-103,376.81-40,919.57

Finding the Fourth Proportional to 74,911.49, 103,376.81 and 40,919.57

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Solution

The fourth proportional to 74,911.49, 103,376.81 and 40,919.57 is: 56,468.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,911.49 : 103,376.81 = 40,919.57 : x
  2. Step 2: Convert to fraction form
    74,911.49/103,376.81 = 40,919.57/x
  3. Step 3: Cross multiply
    74,911.49x = 103,376.81 × 40,919.57
  4. Step 4: Simplify right side
    74,911.49x = 4,230,133,891.69
  5. Step 5: Solve for x
    x = 4,230,133,891.69/74,911.49
  6. Step 6: Final answer
    x = 56,468.43

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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.