Home / 66,504.21-91,774.02-36,289.50

Finding the Fourth Proportional to 66,504.21, 91,774.02 and 36,289.50

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Solution

The fourth proportional to 66,504.21, 91,774.02 and 36,289.50 is: 50,078.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,504.21 : 91,774.02 = 36,289.50 : x
  2. Step 2: Convert to fraction form
    66,504.21/91,774.02 = 36,289.50/x
  3. Step 3: Cross multiply
    66,504.21x = 91,774.02 × 36,289.50
  4. Step 4: Simplify right side
    66,504.21x = 3,330,433,298.79
  5. Step 5: Solve for x
    x = 3,330,433,298.79/66,504.21
  6. Step 6: Final answer
    x = 50,078.53

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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.