Home / 74,110.85-102,272.87-40,119.17

Finding the Fourth Proportional to 74,110.85, 102,272.87 and 40,119.17

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Solution

The fourth proportional to 74,110.85, 102,272.87 and 40,119.17 is: 55,364.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,110.85 : 102,272.87 = 40,119.17 : x
  2. Step 2: Convert to fraction form
    74,110.85/102,272.87 = 40,119.17/x
  3. Step 3: Cross multiply
    74,110.85x = 102,272.87 × 40,119.17
  4. Step 4: Simplify right side
    74,110.85x = 4,103,102,457.32
  5. Step 5: Solve for x
    x = 4,103,102,457.32/74,110.85
  6. Step 6: Final answer
    x = 55,364.40

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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.