Home / 53,629.09-74,018.91-30,971.77

Finding the Fourth Proportional to 53,629.09, 74,018.91 and 30,971.77

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Solution

The fourth proportional to 53,629.09, 74,018.91 and 30,971.77 is: 42,747.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,629.09 : 74,018.91 = 30,971.77 : x
  2. Step 2: Convert to fraction form
    53,629.09/74,018.91 = 30,971.77/x
  3. Step 3: Cross multiply
    53,629.09x = 74,018.91 × 30,971.77
  4. Step 4: Simplify right side
    53,629.09x = 2,292,496,286.08
  5. Step 5: Solve for x
    x = 2,292,496,286.08/53,629.09
  6. Step 6: Final answer
    x = 42,747.26

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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.