Home / 65,997.64-91,039.98-39,114.28

Finding the Fourth Proportional to 65,997.64, 91,039.98 and 39,114.28

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Solution

The fourth proportional to 65,997.64, 91,039.98 and 39,114.28 is: 53,955.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,997.64 : 91,039.98 = 39,114.28 : x
  2. Step 2: Convert to fraction form
    65,997.64/91,039.98 = 39,114.28/x
  3. Step 3: Cross multiply
    65,997.64x = 91,039.98 × 39,114.28
  4. Step 4: Simplify right side
    65,997.64x = 3,560,963,268.91
  5. Step 5: Solve for x
    x = 3,560,963,268.91/65,997.64
  6. Step 6: Final answer
    x = 53,955.92

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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.