Home / 90,401.07-124,749.86-49,564.34

Finding the Fourth Proportional to 90,401.07, 124,749.86 and 49,564.34

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Solution

The fourth proportional to 90,401.07, 124,749.86 and 49,564.34 is: 68,396.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,401.07 : 124,749.86 = 49,564.34 : x
  2. Step 2: Convert to fraction form
    90,401.07/124,749.86 = 49,564.34/x
  3. Step 3: Cross multiply
    90,401.07x = 124,749.86 × 49,564.34
  4. Step 4: Simplify right side
    90,401.07x = 6,183,143,604.42
  5. Step 5: Solve for x
    x = 6,183,143,604.42/90,401.07
  6. Step 6: Final answer
    x = 68,396.80

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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.