Home / 53,112.51-79,699.55-19,831.33

Finding the Fourth Proportional to 53,112.51, 79,699.55 and 19,831.33

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Solution

The fourth proportional to 53,112.51, 79,699.55 and 19,831.33 is: 29,758.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,112.51 : 79,699.55 = 19,831.33 : x
  2. Step 2: Convert to fraction form
    53,112.51/79,699.55 = 19,831.33/x
  3. Step 3: Cross multiply
    53,112.51x = 79,699.55 × 19,831.33
  4. Step 4: Simplify right side
    53,112.51x = 1,580,548,077.37
  5. Step 5: Solve for x
    x = 1,580,548,077.37/53,112.51
  6. Step 6: Final answer
    x = 29,758.49

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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.