Home / 72,830.21-100,515.26-41,005.31

Finding the Fourth Proportional to 72,830.21, 100,515.26 and 41,005.31

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Solution

The fourth proportional to 72,830.21, 100,515.26 and 41,005.31 is: 56,592.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,830.21 : 100,515.26 = 41,005.31 : x
  2. Step 2: Convert to fraction form
    72,830.21/100,515.26 = 41,005.31/x
  3. Step 3: Cross multiply
    72,830.21x = 100,515.26 × 41,005.31
  4. Step 4: Simplify right side
    72,830.21x = 4,121,658,995.97
  5. Step 5: Solve for x
    x = 4,121,658,995.97/72,830.21
  6. Step 6: Final answer
    x = 56,592.71

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1.5x scale

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.