Home / 40,731.41-61,106.66-12,650.03

Finding the Fourth Proportional to 40,731.41, 61,106.66 and 12,650.03

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Solution

The fourth proportional to 40,731.41, 61,106.66 and 12,650.03 is: 18,978.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,731.41 : 61,106.66 = 12,650.03 : x
  2. Step 2: Convert to fraction form
    40,731.41/61,106.66 = 12,650.03/x
  3. Step 3: Cross multiply
    40,731.41x = 61,106.66 × 12,650.03
  4. Step 4: Simplify right side
    40,731.41x = 773,001,018.95
  5. Step 5: Solve for x
    x = 773,001,018.95/40,731.41
  6. Step 6: Final answer
    x = 18,978.01

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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.