Home / 53,029.80-73,179.72-28,830

Finding the Fourth Proportional to 53,029.80, 73,179.72 and 28,830

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Solution

The fourth proportional to 53,029.80, 73,179.72 and 28,830 is: 39,784.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,029.80 : 73,179.72 = 28,830 : x
  2. Step 2: Convert to fraction form
    53,029.80/73,179.72 = 28,830/x
  3. Step 3: Cross multiply
    53,029.80x = 73,179.72 × 28,830
  4. Step 4: Simplify right side
    53,029.80x = 2,109,771,327.60
  5. Step 5: Solve for x
    x = 2,109,771,327.60/53,029.80
  6. Step 6: Final answer
    x = 39,784.64

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.