Home / 53,769.90-80,653.02-20,488.77

Finding the Fourth Proportional to 53,769.90, 80,653.02 and 20,488.77

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Solution

The fourth proportional to 53,769.90, 80,653.02 and 20,488.77 is: 30,732.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,769.90 : 80,653.02 = 20,488.77 : x
  2. Step 2: Convert to fraction form
    53,769.90/80,653.02 = 20,488.77/x
  3. Step 3: Cross multiply
    53,769.90x = 80,653.02 × 20,488.77
  4. Step 4: Simplify right side
    53,769.90x = 1,652,481,176.59
  5. Step 5: Solve for x
    x = 1,652,481,176.59/53,769.90
  6. Step 6: Final answer
    x = 30,732.46

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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.