Home / 90,541.24-135,819.12-34,408.24

Finding the Fourth Proportional to 90,541.24, 135,819.12 and 34,408.24

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Solution

The fourth proportional to 90,541.24, 135,819.12 and 34,408.24 is: 51,615.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,541.24 : 135,819.12 = 34,408.24 : x
  2. Step 2: Convert to fraction form
    90,541.24/135,819.12 = 34,408.24/x
  3. Step 3: Cross multiply
    90,541.24x = 135,819.12 × 34,408.24
  4. Step 4: Simplify right side
    90,541.24x = 4,673,296,877.55
  5. Step 5: Solve for x
    x = 4,673,296,877.55/90,541.24
  6. Step 6: Final answer
    x = 51,615.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.