Home / 53,643.22-74,010.52-30,979.22

Finding the Fourth Proportional to 53,643.22, 74,010.52 and 30,979.22

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Solution

The fourth proportional to 53,643.22, 74,010.52 and 30,979.22 is: 42,741.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,643.22 : 74,010.52 = 30,979.22 : x
  2. Step 2: Convert to fraction form
    53,643.22/74,010.52 = 30,979.22/x
  3. Step 3: Cross multiply
    53,643.22x = 74,010.52 × 30,979.22
  4. Step 4: Simplify right side
    53,643.22x = 2,292,788,181.39
  5. Step 5: Solve for x
    x = 2,292,788,181.39/53,643.22
  6. Step 6: Final answer
    x = 42,741.43

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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.