Home / 76,512.25-114,774.99-21,108.25

Finding the Fourth Proportional to 76,512.25, 114,774.99 and 21,108.25

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Solution

The fourth proportional to 76,512.25, 114,774.99 and 21,108.25 is: 31,664.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,512.25 : 114,774.99 = 21,108.25 : x
  2. Step 2: Convert to fraction form
    76,512.25/114,774.99 = 21,108.25/x
  3. Step 3: Cross multiply
    76,512.25x = 114,774.99 × 21,108.25
  4. Step 4: Simplify right side
    76,512.25x = 2,422,699,182.67
  5. Step 5: Solve for x
    x = 2,422,699,182.67/76,512.25
  6. Step 6: Final answer
    x = 31,664.20

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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.