Home / 53,739.09-74,154.04-31,074.66

Finding the Fourth Proportional to 53,739.09, 74,154.04 and 31,074.66

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Solution

The fourth proportional to 53,739.09, 74,154.04 and 31,074.66 is: 42,879.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,739.09 : 74,154.04 = 31,074.66 : x
  2. Step 2: Convert to fraction form
    53,739.09/74,154.04 = 31,074.66/x
  3. Step 3: Cross multiply
    53,739.09x = 74,154.04 × 31,074.66
  4. Step 4: Simplify right side
    53,739.09x = 2,304,311,580.63
  5. Step 5: Solve for x
    x = 2,304,311,580.63/53,739.09
  6. Step 6: Final answer
    x = 42,879.62

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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.