Home / 90,638.85-125,099.43-57,912.24

Finding the Fourth Proportional to 90,638.85, 125,099.43 and 57,912.24

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Solution

The fourth proportional to 90,638.85, 125,099.43 and 57,912.24 is: 79,930.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,638.85 : 125,099.43 = 57,912.24 : x
  2. Step 2: Convert to fraction form
    90,638.85/125,099.43 = 57,912.24/x
  3. Step 3: Cross multiply
    90,638.85x = 125,099.43 × 57,912.24
  4. Step 4: Simplify right side
    90,638.85x = 7,244,788,214.02
  5. Step 5: Solve for x
    x = 7,244,788,214.02/90,638.85
  6. Step 6: Final answer
    x = 79,930.28

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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.