Home / 53,130.28-79,725.68-19,873.48

Finding the Fourth Proportional to 53,130.28, 79,725.68 and 19,873.48

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Solution

The fourth proportional to 53,130.28, 79,725.68 and 19,873.48 is: 29,821.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,130.28 : 79,725.68 = 19,873.48 : x
  2. Step 2: Convert to fraction form
    53,130.28/79,725.68 = 19,873.48/x
  3. Step 3: Cross multiply
    53,130.28x = 79,725.68 × 19,873.48
  4. Step 4: Simplify right side
    53,130.28x = 1,584,426,706.97
  5. Step 5: Solve for x
    x = 1,584,426,706.97/53,130.28
  6. Step 6: Final answer
    x = 29,821.54

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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.