Home / 83,208.12-114,887.34-51,420.60

Finding the Fourth Proportional to 83,208.12, 114,887.34 and 51,420.60

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Solution

The fourth proportional to 83,208.12, 114,887.34 and 51,420.60 is: 70,997.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,208.12 : 114,887.34 = 51,420.60 : x
  2. Step 2: Convert to fraction form
    83,208.12/114,887.34 = 51,420.60/x
  3. Step 3: Cross multiply
    83,208.12x = 114,887.34 × 51,420.60
  4. Step 4: Simplify right side
    83,208.12x = 5,907,575,955.20
  5. Step 5: Solve for x
    x = 5,907,575,955.20/83,208.12
  6. Step 6: Final answer
    x = 70,997.59

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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.