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Finding the Fourth Proportional to 45,378.40, 67,690.28 and 44,652.64

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Solution

The fourth proportional to 45,378.40, 67,690.28 and 44,652.64 is: 66,607.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,378.40 : 67,690.28 = 44,652.64 : x
  2. Step 2: Convert to fraction form
    45,378.40/67,690.28 = 44,652.64/x
  3. Step 3: Cross multiply
    45,378.40x = 67,690.28 × 44,652.64
  4. Step 4: Simplify right side
    45,378.40x = 3,022,549,704.34
  5. Step 5: Solve for x
    x = 3,022,549,704.34/45,378.40
  6. Step 6: Final answer
    x = 66,607.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.