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Finding the Fourth Proportional to 66,595.55, 91,900.34 and 36,381

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Solution

The fourth proportional to 66,595.55, 91,900.34 and 36,381 is: 50,204.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,595.55 : 91,900.34 = 36,381 : x
  2. Step 2: Convert to fraction form
    66,595.55/91,900.34 = 36,381/x
  3. Step 3: Cross multiply
    66,595.55x = 91,900.34 × 36,381
  4. Step 4: Simplify right side
    66,595.55x = 3,343,426,087.64
  5. Step 5: Solve for x
    x = 3,343,426,087.64/66,595.55
  6. Step 6: Final answer
    x = 50,204.95

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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.