Home / 53,112.78-79,669.39-21,523.44

Finding the Fourth Proportional to 53,112.78, 79,669.39 and 21,523.44

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Solution

The fourth proportional to 53,112.78, 79,669.39 and 21,523.44 is: 32,285.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,112.78 : 79,669.39 = 21,523.44 : x
  2. Step 2: Convert to fraction form
    53,112.78/79,669.39 = 21,523.44/x
  3. Step 3: Cross multiply
    53,112.78x = 79,669.39 × 21,523.44
  4. Step 4: Simplify right side
    53,112.78x = 1,714,759,386.12
  5. Step 5: Solve for x
    x = 1,714,759,386.12/53,112.78
  6. Step 6: Final answer
    x = 32,285.25

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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.