Home / 53,118.77-79,678.19-50,812.55

Finding the Fourth Proportional to 53,118.77, 79,678.19 and 50,812.55

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Solution

The fourth proportional to 53,118.77, 79,678.19 and 50,812.55 is: 76,218.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,118.77 : 79,678.19 = 50,812.55 : x
  2. Step 2: Convert to fraction form
    53,118.77/79,678.19 = 50,812.55/x
  3. Step 3: Cross multiply
    53,118.77x = 79,678.19 × 50,812.55
  4. Step 4: Simplify right side
    53,118.77x = 4,048,652,339.51
  5. Step 5: Solve for x
    x = 4,048,652,339.51/53,118.77
  6. Step 6: Final answer
    x = 76,218.86

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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.