Home / 91,199.10-125,851.48-57,225.88

Finding the Fourth Proportional to 91,199.10, 125,851.48 and 57,225.88

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Solution

The fourth proportional to 91,199.10, 125,851.48 and 57,225.88 is: 78,969.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,199.10 : 125,851.48 = 57,225.88 : x
  2. Step 2: Convert to fraction form
    91,199.10/125,851.48 = 57,225.88/x
  3. Step 3: Cross multiply
    91,199.10x = 125,851.48 × 57,225.88
  4. Step 4: Simplify right side
    91,199.10x = 7,201,961,692.30
  5. Step 5: Solve for x
    x = 7,201,961,692.30/91,199.10
  6. Step 6: Final answer
    x = 78,969.66

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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.