Home / 53,135.65-79,725.03-19,865.26

Finding the Fourth Proportional to 53,135.65, 79,725.03 and 19,865.26

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Solution

The fourth proportional to 53,135.65, 79,725.03 and 19,865.26 is: 29,805.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,135.65 : 79,725.03 = 19,865.26 : x
  2. Step 2: Convert to fraction form
    53,135.65/79,725.03 = 19,865.26/x
  3. Step 3: Cross multiply
    53,135.65x = 79,725.03 × 19,865.26
  4. Step 4: Simplify right side
    53,135.65x = 1,583,758,449.46
  5. Step 5: Solve for x
    x = 1,583,758,449.46/53,135.65
  6. Step 6: Final answer
    x = 29,805.95

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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.