Home / 190,031.10-285,055.84-49,789.86

Finding the Fourth Proportional to 190,031.10, 285,055.84 and 49,789.86

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Solution

The fourth proportional to 190,031.10, 285,055.84 and 49,789.86 is: 74,687.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,031.10 : 285,055.84 = 49,789.86 : x
  2. Step 2: Convert to fraction form
    190,031.10/285,055.84 = 49,789.86/x
  3. Step 3: Cross multiply
    190,031.10x = 285,055.84 × 49,789.86
  4. Step 4: Simplify right side
    190,031.10x = 14,192,890,365.78
  5. Step 5: Solve for x
    x = 14,192,890,365.78/190,031.10
  6. Step 6: Final answer
    x = 74,687.20

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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.