Home / 49,779.93-74,667.47-18,612.75

Finding the Fourth Proportional to 49,779.93, 74,667.47 and 18,612.75

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Solution

The fourth proportional to 49,779.93, 74,667.47 and 18,612.75 is: 27,918.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,779.93 : 74,667.47 = 18,612.75 : x
  2. Step 2: Convert to fraction form
    49,779.93/74,667.47 = 18,612.75/x
  3. Step 3: Cross multiply
    49,779.93x = 74,667.47 × 18,612.75
  4. Step 4: Simplify right side
    49,779.93x = 1,389,766,859.18
  5. Step 5: Solve for x
    x = 1,389,766,859.18/49,779.93
  6. Step 6: Final answer
    x = 27,918.22

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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.