Home / 74,110.93-102,272.39-40,118.55

Finding the Fourth Proportional to 74,110.93, 102,272.39 and 40,118.55

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Solution

The fourth proportional to 74,110.93, 102,272.39 and 40,118.55 is: 55,363.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,110.93 : 102,272.39 = 40,118.55 : x
  2. Step 2: Convert to fraction form
    74,110.93/102,272.39 = 40,118.55/x
  3. Step 3: Cross multiply
    74,110.93x = 102,272.39 × 40,118.55
  4. Step 4: Simplify right side
    74,110.93x = 4,103,019,991.83
  5. Step 5: Solve for x
    x = 4,103,019,991.83/74,110.93
  6. Step 6: Final answer
    x = 55,363.22

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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.