Home / 53,866.80-74,335.48-31,208.88

Finding the Fourth Proportional to 53,866.80, 74,335.48 and 31,208.88

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Solution

The fourth proportional to 53,866.80, 74,335.48 and 31,208.88 is: 43,067.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,866.80 : 74,335.48 = 31,208.88 : x
  2. Step 2: Convert to fraction form
    53,866.80/74,335.48 = 31,208.88/x
  3. Step 3: Cross multiply
    53,866.80x = 74,335.48 × 31,208.88
  4. Step 4: Simplify right side
    53,866.80x = 2,319,927,075.06
  5. Step 5: Solve for x
    x = 2,319,927,075.06/53,866.80
  6. Step 6: Final answer
    x = 43,067.85

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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.