Home / 53,111.39-79,648.52-15,661.52

Finding the Fourth Proportional to 53,111.39, 79,648.52 and 15,661.52

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Solution

The fourth proportional to 53,111.39, 79,648.52 and 15,661.52 is: 23,486.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,111.39 : 79,648.52 = 15,661.52 : x
  2. Step 2: Convert to fraction form
    53,111.39/79,648.52 = 15,661.52/x
  3. Step 3: Cross multiply
    53,111.39x = 79,648.52 × 15,661.52
  4. Step 4: Simplify right side
    53,111.39x = 1,247,416,412.40
  5. Step 5: Solve for x
    x = 1,247,416,412.40/53,111.39
  6. Step 6: Final answer
    x = 23,486.80

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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.