Home / 85,911.03-118,562.54-57,181.14

Finding the Fourth Proportional to 85,911.03, 118,562.54 and 57,181.14

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Solution

The fourth proportional to 85,911.03, 118,562.54 and 57,181.14 is: 78,913.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,911.03 : 118,562.54 = 57,181.14 : x
  2. Step 2: Convert to fraction form
    85,911.03/118,562.54 = 57,181.14/x
  3. Step 3: Cross multiply
    85,911.03x = 118,562.54 × 57,181.14
  4. Step 4: Simplify right side
    85,911.03x = 6,779,540,912.59
  5. Step 5: Solve for x
    x = 6,779,540,912.59/85,911.03
  6. Step 6: Final answer
    x = 78,913.51

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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.