Home / 40,837.88-61,258.44-12,776.78

Finding the Fourth Proportional to 40,837.88, 61,258.44 and 12,776.78

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Solution

The fourth proportional to 40,837.88, 61,258.44 and 12,776.78 is: 19,165.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,837.88 : 61,258.44 = 12,776.78 : x
  2. Step 2: Convert to fraction form
    40,837.88/61,258.44 = 12,776.78/x
  3. Step 3: Cross multiply
    40,837.88x = 61,258.44 × 12,776.78
  4. Step 4: Simplify right side
    40,837.88x = 782,685,611.02
  5. Step 5: Solve for x
    x = 782,685,611.02/40,837.88
  6. Step 6: Final answer
    x = 19,165.68

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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.