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Finding the Fourth Proportional to 45,063, 67,549.14 and 18,782.28

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Solution

The fourth proportional to 45,063, 67,549.14 and 18,782.28 is: 28,154.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,063 : 67,549.14 = 18,782.28 : x
  2. Step 2: Convert to fraction form
    45,063/67,549.14 = 18,782.28/x
  3. Step 3: Cross multiply
    45,063x = 67,549.14 × 18,782.28
  4. Step 4: Simplify right side
    45,063x = 1,268,726,861.24
  5. Step 5: Solve for x
    x = 1,268,726,861.24/45,063
  6. Step 6: Final answer
    x = 28,154.51

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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.