Home / 31,109.60-46,779.60-26,040.80

Finding the Fourth Proportional to 31,109.60, 46,779.60 and 26,040.80

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Solution

The fourth proportional to 31,109.60, 46,779.60 and 26,040.80 is: 39,157.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,109.60 : 46,779.60 = 26,040.80 : x
  2. Step 2: Convert to fraction form
    31,109.60/46,779.60 = 26,040.80/x
  3. Step 3: Cross multiply
    31,109.60x = 46,779.60 × 26,040.80
  4. Step 4: Simplify right side
    31,109.60x = 1,218,178,207.68
  5. Step 5: Solve for x
    x = 1,218,178,207.68/31,109.60
  6. Step 6: Final answer
    x = 39,157.63

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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.