Home / 85,857.03-118,527.21-66,693.87

Finding the Fourth Proportional to 85,857.03, 118,527.21 and 66,693.87

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Solution

The fourth proportional to 85,857.03, 118,527.21 and 66,693.87 is: 92,072.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,857.03 : 118,527.21 = 66,693.87 : x
  2. Step 2: Convert to fraction form
    85,857.03/118,527.21 = 66,693.87/x
  3. Step 3: Cross multiply
    85,857.03x = 118,527.21 × 66,693.87
  4. Step 4: Simplify right side
    85,857.03x = 7,905,038,335.20
  5. Step 5: Solve for x
    x = 7,905,038,335.20/85,857.03
  6. Step 6: Final answer
    x = 92,072.11

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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.