Home / 53,979.50-74,491.80-30,107.71

Finding the Fourth Proportional to 53,979.50, 74,491.80 and 30,107.71

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Solution

The fourth proportional to 53,979.50, 74,491.80 and 30,107.71 is: 41,548.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,979.50 : 74,491.80 = 30,107.71 : x
  2. Step 2: Convert to fraction form
    53,979.50/74,491.80 = 30,107.71/x
  3. Step 3: Cross multiply
    53,979.50x = 74,491.80 × 30,107.71
  4. Step 4: Simplify right side
    53,979.50x = 2,242,777,400.82
  5. Step 5: Solve for x
    x = 2,242,777,400.82/53,979.50
  6. Step 6: Final answer
    x = 41,548.69

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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.