Home / 190,042.48-285,065.88-49,815.28

Finding the Fourth Proportional to 190,042.48, 285,065.88 and 49,815.28

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Solution

The fourth proportional to 190,042.48, 285,065.88 and 49,815.28 is: 74,723.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,042.48 : 285,065.88 = 49,815.28 : x
  2. Step 2: Convert to fraction form
    190,042.48/285,065.88 = 49,815.28/x
  3. Step 3: Cross multiply
    190,042.48x = 285,065.88 × 49,815.28
  4. Step 4: Simplify right side
    190,042.48x = 14,200,636,630.65
  5. Step 5: Solve for x
    x = 14,200,636,630.65/190,042.48
  6. Step 6: Final answer
    x = 74,723.49

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.