Home / 85,912.03-118,563.92-57,182.14

Finding the Fourth Proportional to 85,912.03, 118,563.92 and 57,182.14

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Solution

The fourth proportional to 85,912.03, 118,563.92 and 57,182.14 is: 78,914.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,912.03 : 118,563.92 = 57,182.14 : x
  2. Step 2: Convert to fraction form
    85,912.03/118,563.92 = 57,182.14/x
  3. Step 3: Cross multiply
    85,912.03x = 118,563.92 × 57,182.14
  4. Step 4: Simplify right side
    85,912.03x = 6,779,738,672.39
  5. Step 5: Solve for x
    x = 6,779,738,672.39/85,912.03
  6. Step 6: Final answer
    x = 78,914.89

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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.