Home / 76,365.12-114,520.32-26,431.80

Finding the Fourth Proportional to 76,365.12, 114,520.32 and 26,431.80

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Solution

The fourth proportional to 76,365.12, 114,520.32 and 26,431.80 is: 39,638.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,365.12 : 114,520.32 = 26,431.80 : x
  2. Step 2: Convert to fraction form
    76,365.12/114,520.32 = 26,431.80/x
  3. Step 3: Cross multiply
    76,365.12x = 114,520.32 × 26,431.80
  4. Step 4: Simplify right side
    76,365.12x = 3,026,978,194.18
  5. Step 5: Solve for x
    x = 3,026,978,194.18/76,365.12
  6. Step 6: Final answer
    x = 39,638.23

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1.5x scale

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.