Home / 53,269.51-79,901.14-19,986.80

Finding the Fourth Proportional to 53,269.51, 79,901.14 and 19,986.80

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Solution

The fourth proportional to 53,269.51, 79,901.14 and 19,986.80 is: 29,979.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,269.51 : 79,901.14 = 19,986.80 : x
  2. Step 2: Convert to fraction form
    53,269.51/79,901.14 = 19,986.80/x
  3. Step 3: Cross multiply
    53,269.51x = 79,901.14 × 19,986.80
  4. Step 4: Simplify right side
    53,269.51x = 1,596,968,104.95
  5. Step 5: Solve for x
    x = 1,596,968,104.95/53,269.51
  6. Step 6: Final answer
    x = 29,979.03

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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.