Home / 64,989.28-89,690.70-36,700.12

Finding the Fourth Proportional to 64,989.28, 89,690.70 and 36,700.12

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Solution

The fourth proportional to 64,989.28, 89,690.70 and 36,700.12 is: 50,649.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,989.28 : 89,690.70 = 36,700.12 : x
  2. Step 2: Convert to fraction form
    64,989.28/89,690.70 = 36,700.12/x
  3. Step 3: Cross multiply
    64,989.28x = 89,690.70 × 36,700.12
  4. Step 4: Simplify right side
    64,989.28x = 3,291,659,452.88
  5. Step 5: Solve for x
    x = 3,291,659,452.88/64,989.28
  6. Step 6: Final answer
    x = 50,649.27

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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.