Home / 49,943.69-74,918.41-18,779.21

Finding the Fourth Proportional to 49,943.69, 74,918.41 and 18,779.21

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Solution

The fourth proportional to 49,943.69, 74,918.41 and 18,779.21 is: 28,169.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,943.69 : 74,918.41 = 18,779.21 : x
  2. Step 2: Convert to fraction form
    49,943.69/74,918.41 = 18,779.21/x
  3. Step 3: Cross multiply
    49,943.69x = 74,918.41 × 18,779.21
  4. Step 4: Simplify right side
    49,943.69x = 1,406,908,132.72
  5. Step 5: Solve for x
    x = 1,406,908,132.72/49,943.69
  6. Step 6: Final answer
    x = 28,169.89

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1.5x scale

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.