Home / 74,284.36-102,512.10-40,749.64

Finding the Fourth Proportional to 74,284.36, 102,512.10 and 40,749.64

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Solution

The fourth proportional to 74,284.36, 102,512.10 and 40,749.64 is: 56,234.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,284.36 : 102,512.10 = 40,749.64 : x
  2. Step 2: Convert to fraction form
    74,284.36/102,512.10 = 40,749.64/x
  3. Step 3: Cross multiply
    74,284.36x = 102,512.10 × 40,749.64
  4. Step 4: Simplify right side
    74,284.36x = 4,177,331,170.64
  5. Step 5: Solve for x
    x = 4,177,331,170.64/74,284.36
  6. Step 6: Final answer
    x = 56,234.33

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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.