Home / 53,991.09-74,406.80-38,857.47

Finding the Fourth Proportional to 53,991.09, 74,406.80 and 38,857.47

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Solution

The fourth proportional to 53,991.09, 74,406.80 and 38,857.47 is: 53,550.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,991.09 : 74,406.80 = 38,857.47 : x
  2. Step 2: Convert to fraction form
    53,991.09/74,406.80 = 38,857.47/x
  3. Step 3: Cross multiply
    53,991.09x = 74,406.80 × 38,857.47
  4. Step 4: Simplify right side
    53,991.09x = 2,891,259,998.80
  5. Step 5: Solve for x
    x = 2,891,259,998.80/53,991.09
  6. Step 6: Final answer
    x = 53,550.69

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1.5x scale

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.