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Finding the Fourth Proportional to 41,994.88, 62,992.40 and 39,428.80

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Solution

The fourth proportional to 41,994.88, 62,992.40 and 39,428.80 is: 59,143.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,994.88 : 62,992.40 = 39,428.80 : x
  2. Step 2: Convert to fraction form
    41,994.88/62,992.40 = 39,428.80/x
  3. Step 3: Cross multiply
    41,994.88x = 62,992.40 × 39,428.80
  4. Step 4: Simplify right side
    41,994.88x = 2,483,714,741.12
  5. Step 5: Solve for x
    x = 2,483,714,741.12/41,994.88
  6. Step 6: Final answer
    x = 59,143.28

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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.