Home / 85,218.84-117,814.58-63,961.20

Finding the Fourth Proportional to 85,218.84, 117,814.58 and 63,961.20

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Solution

The fourth proportional to 85,218.84, 117,814.58 and 63,961.20 is: 88,426.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,218.84 : 117,814.58 = 63,961.20 : x
  2. Step 2: Convert to fraction form
    85,218.84/117,814.58 = 63,961.20/x
  3. Step 3: Cross multiply
    85,218.84x = 117,814.58 × 63,961.20
  4. Step 4: Simplify right side
    85,218.84x = 7,535,561,914.30
  5. Step 5: Solve for x
    x = 7,535,561,914.30/85,218.84
  6. Step 6: Final answer
    x = 88,426.01

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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.