Home / 51,239.08-76,349.26-45,649.48

Finding the Fourth Proportional to 51,239.08, 76,349.26 and 45,649.48

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Solution

The fourth proportional to 51,239.08, 76,349.26 and 45,649.48 is: 68,020.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,239.08 : 76,349.26 = 45,649.48 : x
  2. Step 2: Convert to fraction form
    51,239.08/76,349.26 = 45,649.48/x
  3. Step 3: Cross multiply
    51,239.08x = 76,349.26 × 45,649.48
  4. Step 4: Simplify right side
    51,239.08x = 3,485,303,521.51
  5. Step 5: Solve for x
    x = 3,485,303,521.51/51,239.08
  6. Step 6: Final answer
    x = 68,020.42

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.