Home / 74,828.65-103,265.71-40,839.32

Finding the Fourth Proportional to 74,828.65, 103,265.71 and 40,839.32

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Solution

The fourth proportional to 74,828.65, 103,265.71 and 40,839.32 is: 56,359.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,828.65 : 103,265.71 = 40,839.32 : x
  2. Step 2: Convert to fraction form
    74,828.65/103,265.71 = 40,839.32/x
  3. Step 3: Cross multiply
    74,828.65x = 103,265.71 × 40,839.32
  4. Step 4: Simplify right side
    74,828.65x = 4,217,300,757.29
  5. Step 5: Solve for x
    x = 4,217,300,757.29/74,828.65
  6. Step 6: Final answer
    x = 56,359.44

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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.