Home / 73,999.89-102,120.30-40,008.33

Finding the Fourth Proportional to 73,999.89, 102,120.30 and 40,008.33

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Solution

The fourth proportional to 73,999.89, 102,120.30 and 40,008.33 is: 55,211.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,999.89 : 102,120.30 = 40,008.33 : x
  2. Step 2: Convert to fraction form
    73,999.89/102,120.30 = 40,008.33/x
  3. Step 3: Cross multiply
    73,999.89x = 102,120.30 × 40,008.33
  4. Step 4: Simplify right side
    73,999.89x = 4,085,662,662.10
  5. Step 5: Solve for x
    x = 4,085,662,662.10/73,999.89
  6. Step 6: Final answer
    x = 55,211.74

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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.