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Finding the Fourth Proportional to 45,959.99, 68,941.40 and 14,371.20

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Solution

The fourth proportional to 45,959.99, 68,941.40 and 14,371.20 is: 21,557.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,959.99 : 68,941.40 = 14,371.20 : x
  2. Step 2: Convert to fraction form
    45,959.99/68,941.40 = 14,371.20/x
  3. Step 3: Cross multiply
    45,959.99x = 68,941.40 × 14,371.20
  4. Step 4: Simplify right side
    45,959.99x = 990,770,575.82
  5. Step 5: Solve for x
    x = 990,770,575.82/45,959.99
  6. Step 6: Final answer
    x = 21,557.24

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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.