Home / 56,509.26-78,063.78-45,163.86

Finding the Fourth Proportional to 56,509.26, 78,063.78 and 45,163.86

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Solution

The fourth proportional to 56,509.26, 78,063.78 and 45,163.86 is: 62,390.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,509.26 : 78,063.78 = 45,163.86 : x
  2. Step 2: Convert to fraction form
    56,509.26/78,063.78 = 45,163.86/x
  3. Step 3: Cross multiply
    56,509.26x = 78,063.78 × 45,163.86
  4. Step 4: Simplify right side
    56,509.26x = 3,525,661,630.99
  5. Step 5: Solve for x
    x = 3,525,661,630.99/56,509.26
  6. Step 6: Final answer
    x = 62,390.87

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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.