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Finding the Fourth Proportional to 66,647.37, 91,973.17 and 36,432.71

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Solution

The fourth proportional to 66,647.37, 91,973.17 and 36,432.71 is: 50,277.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,647.37 : 91,973.17 = 36,432.71 : x
  2. Step 2: Convert to fraction form
    66,647.37/91,973.17 = 36,432.71/x
  3. Step 3: Cross multiply
    66,647.37x = 91,973.17 × 36,432.71
  4. Step 4: Simplify right side
    66,647.37x = 3,350,831,188.36
  5. Step 5: Solve for x
    x = 3,350,831,188.36/66,647.37
  6. Step 6: Final answer
    x = 50,277.02

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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.