Home / 64,825.45-89,455.39-36,144.16

Finding the Fourth Proportional to 64,825.45, 89,455.39 and 36,144.16

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Solution

The fourth proportional to 64,825.45, 89,455.39 and 36,144.16 is: 49,876.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,825.45 : 89,455.39 = 36,144.16 : x
  2. Step 2: Convert to fraction form
    64,825.45/89,455.39 = 36,144.16/x
  3. Step 3: Cross multiply
    64,825.45x = 89,455.39 × 36,144.16
  4. Step 4: Simplify right side
    64,825.45x = 3,233,289,615.02
  5. Step 5: Solve for x
    x = 3,233,289,615.02/64,825.45
  6. Step 6: Final answer
    x = 49,876.86

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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.