Home / 64,659.12-89,229.24-36,364.20

Finding the Fourth Proportional to 64,659.12, 89,229.24 and 36,364.20

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Solution

The fourth proportional to 64,659.12, 89,229.24 and 36,364.20 is: 50,182.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,659.12 : 89,229.24 = 36,364.20 : x
  2. Step 2: Convert to fraction form
    64,659.12/89,229.24 = 36,364.20/x
  3. Step 3: Cross multiply
    64,659.12x = 89,229.24 × 36,364.20
  4. Step 4: Simplify right side
    64,659.12x = 3,244,749,929.21
  5. Step 5: Solve for x
    x = 3,244,749,929.21/64,659.12
  6. Step 6: Final answer
    x = 50,182.40

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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.