Home / 53,865.78-74,323.53-31,203.42

Finding the Fourth Proportional to 53,865.78, 74,323.53 and 31,203.42

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Solution

The fourth proportional to 53,865.78, 74,323.53 and 31,203.42 is: 43,054.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,865.78 : 74,323.53 = 31,203.42 : x
  2. Step 2: Convert to fraction form
    53,865.78/74,323.53 = 31,203.42/x
  3. Step 3: Cross multiply
    53,865.78x = 74,323.53 × 31,203.42
  4. Step 4: Simplify right side
    53,865.78x = 2,319,148,322.47
  5. Step 5: Solve for x
    x = 2,319,148,322.47/53,865.78
  6. Step 6: Final answer
    x = 43,054.20

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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.