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Finding the Fourth Proportional to 66,615.23, 91,926.27 and 36,401.58

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Solution

The fourth proportional to 66,615.23, 91,926.27 and 36,401.58 is: 50,232.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,615.23 : 91,926.27 = 36,401.58 : x
  2. Step 2: Convert to fraction form
    66,615.23/91,926.27 = 36,401.58/x
  3. Step 3: Cross multiply
    66,615.23x = 91,926.27 × 36,401.58
  4. Step 4: Simplify right side
    66,615.23x = 3,346,261,471.51
  5. Step 5: Solve for x
    x = 3,346,261,471.51/66,615.23
  6. Step 6: Final answer
    x = 50,232.68

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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.