Home / 45,460.64-68,188.23-20,490.57

Finding the Fourth Proportional to 45,460.64, 68,188.23 and 20,490.57

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Solution

The fourth proportional to 45,460.64, 68,188.23 and 20,490.57 is: 30,734.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,460.64 : 68,188.23 = 20,490.57 : x
  2. Step 2: Convert to fraction form
    45,460.64/68,188.23 = 20,490.57/x
  3. Step 3: Cross multiply
    45,460.64x = 68,188.23 × 20,490.57
  4. Step 4: Simplify right side
    45,460.64x = 1,397,215,699.99
  5. Step 5: Solve for x
    x = 1,397,215,699.99/45,460.64
  6. Step 6: Final answer
    x = 30,734.62

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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.