Home / 64,783.24-97,191.18-20,408.20

Finding the Fourth Proportional to 64,783.24, 97,191.18 and 20,408.20

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Solution

The fourth proportional to 64,783.24, 97,191.18 and 20,408.20 is: 30,617.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,783.24 : 97,191.18 = 20,408.20 : x
  2. Step 2: Convert to fraction form
    64,783.24/97,191.18 = 20,408.20/x
  3. Step 3: Cross multiply
    64,783.24x = 97,191.18 × 20,408.20
  4. Step 4: Simplify right side
    64,783.24x = 1,983,497,039.68
  5. Step 5: Solve for x
    x = 1,983,497,039.68/64,783.24
  6. Step 6: Final answer
    x = 30,617.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.