Home / 42,986.42-64,403.36-36,682.40

Finding the Fourth Proportional to 42,986.42, 64,403.36 and 36,682.40

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Solution

The fourth proportional to 42,986.42, 64,403.36 and 36,682.40 is: 54,958.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,986.42 : 64,403.36 = 36,682.40 : x
  2. Step 2: Convert to fraction form
    42,986.42/64,403.36 = 36,682.40/x
  3. Step 3: Cross multiply
    42,986.42x = 64,403.36 × 36,682.40
  4. Step 4: Simplify right side
    42,986.42x = 2,362,469,812.86
  5. Step 5: Solve for x
    x = 2,362,469,812.86/42,986.42
  6. Step 6: Final answer
    x = 54,958.52

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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.