Home / 37,739.73-56,619.80-12,779.78

Finding the Fourth Proportional to 37,739.73, 56,619.80 and 12,779.78

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Solution

The fourth proportional to 37,739.73, 56,619.80 and 12,779.78 is: 19,173.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,739.73 : 56,619.80 = 12,779.78 : x
  2. Step 2: Convert to fraction form
    37,739.73/56,619.80 = 12,779.78/x
  3. Step 3: Cross multiply
    37,739.73x = 56,619.80 × 12,779.78
  4. Step 4: Simplify right side
    37,739.73x = 723,588,587.64
  5. Step 5: Solve for x
    x = 723,588,587.64/37,739.73
  6. Step 6: Final answer
    x = 19,173.13

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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.