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Finding the Fourth Proportional to 40,688.40, 60,935.40 and 32,912.40

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Solution

The fourth proportional to 40,688.40, 60,935.40 and 32,912.40 is: 49,289.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,688.40 : 60,935.40 = 32,912.40 : x
  2. Step 2: Convert to fraction form
    40,688.40/60,935.40 = 32,912.40/x
  3. Step 3: Cross multiply
    40,688.40x = 60,935.40 × 32,912.40
  4. Step 4: Simplify right side
    40,688.40x = 2,005,530,258.96
  5. Step 5: Solve for x
    x = 2,005,530,258.96/40,688.40
  6. Step 6: Final answer
    x = 49,289.98

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1.5x scale

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.