Home / 53,212.60-79,829.70-18,155.80

Finding the Fourth Proportional to 53,212.60, 79,829.70 and 18,155.80

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Solution

The fourth proportional to 53,212.60, 79,829.70 and 18,155.80 is: 27,237.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,212.60 : 79,829.70 = 18,155.80 : x
  2. Step 2: Convert to fraction form
    53,212.60/79,829.70 = 18,155.80/x
  3. Step 3: Cross multiply
    53,212.60x = 79,829.70 × 18,155.80
  4. Step 4: Simplify right side
    53,212.60x = 1,449,372,067.26
  5. Step 5: Solve for x
    x = 1,449,372,067.26/53,212.60
  6. Step 6: Final answer
    x = 27,237.38

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1.5x scale

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.