Home / 64,960.08-89,643.20-36,665.58

Finding the Fourth Proportional to 64,960.08, 89,643.20 and 36,665.58

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Solution

The fourth proportional to 64,960.08, 89,643.20 and 36,665.58 is: 50,597.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,960.08 : 89,643.20 = 36,665.58 : x
  2. Step 2: Convert to fraction form
    64,960.08/89,643.20 = 36,665.58/x
  3. Step 3: Cross multiply
    64,960.08x = 89,643.20 × 36,665.58
  4. Step 4: Simplify right side
    64,960.08x = 3,286,819,921.06
  5. Step 5: Solve for x
    x = 3,286,819,921.06/64,960.08
  6. Step 6: Final answer
    x = 50,597.53

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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.