Home / 66,575.06-91,939.29-52,403.30

Finding the Fourth Proportional to 66,575.06, 91,939.29 and 52,403.30

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Solution

The fourth proportional to 66,575.06, 91,939.29 and 52,403.30 is: 72,368.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,575.06 : 91,939.29 = 52,403.30 : x
  2. Step 2: Convert to fraction form
    66,575.06/91,939.29 = 52,403.30/x
  3. Step 3: Cross multiply
    66,575.06x = 91,939.29 × 52,403.30
  4. Step 4: Simplify right side
    66,575.06x = 4,817,922,195.66
  5. Step 5: Solve for x
    x = 4,817,922,195.66/66,575.06
  6. Step 6: Final answer
    x = 72,368.27

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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.