Home / 45,631.80-68,447.70-42,252.60

Finding the Fourth Proportional to 45,631.80, 68,447.70 and 42,252.60

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Solution

The fourth proportional to 45,631.80, 68,447.70 and 42,252.60 is: 63,378.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,631.80 : 68,447.70 = 42,252.60 : x
  2. Step 2: Convert to fraction form
    45,631.80/68,447.70 = 42,252.60/x
  3. Step 3: Cross multiply
    45,631.80x = 68,447.70 × 42,252.60
  4. Step 4: Simplify right side
    45,631.80x = 2,892,093,289.02
  5. Step 5: Solve for x
    x = 2,892,093,289.02/45,631.80
  6. Step 6: Final answer
    x = 63,378.90

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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.