Home / 74,724.57-103,119.21-40,733.01

Finding the Fourth Proportional to 74,724.57, 103,119.21 and 40,733.01

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Solution

The fourth proportional to 74,724.57, 103,119.21 and 40,733.01 is: 56,211.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,724.57 : 103,119.21 = 40,733.01 : x
  2. Step 2: Convert to fraction form
    74,724.57/103,119.21 = 40,733.01/x
  3. Step 3: Cross multiply
    74,724.57x = 103,119.21 × 40,733.01
  4. Step 4: Simplify right side
    74,724.57x = 4,200,355,812.12
  5. Step 5: Solve for x
    x = 4,200,355,812.12/74,724.57
  6. Step 6: Final answer
    x = 56,211.17

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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.