Home / 76,412.16-114,540.48-70,755.12

Finding the Fourth Proportional to 76,412.16, 114,540.48 and 70,755.12

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Solution

The fourth proportional to 76,412.16, 114,540.48 and 70,755.12 is: 106,060.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,412.16 : 114,540.48 = 70,755.12 : x
  2. Step 2: Convert to fraction form
    76,412.16/114,540.48 = 70,755.12/x
  3. Step 3: Cross multiply
    76,412.16x = 114,540.48 × 70,755.12
  4. Step 4: Simplify right side
    76,412.16x = 8,104,325,407.26
  5. Step 5: Solve for x
    x = 8,104,325,407.26/76,412.16
  6. Step 6: Final answer
    x = 106,060.68

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.