Home / 53,805.74-74,342.63-38,668.28

Finding the Fourth Proportional to 53,805.74, 74,342.63 and 38,668.28

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Solution

The fourth proportional to 53,805.74, 74,342.63 and 38,668.28 is: 53,427.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,805.74 : 74,342.63 = 38,668.28 : x
  2. Step 2: Convert to fraction form
    53,805.74/74,342.63 = 38,668.28/x
  3. Step 3: Cross multiply
    53,805.74x = 74,342.63 × 38,668.28
  4. Step 4: Simplify right side
    53,805.74x = 2,874,701,357.73
  5. Step 5: Solve for x
    x = 2,874,701,357.73/53,805.74
  6. Step 6: Final answer
    x = 53,427.42

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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.