Home / 72,829.54-100,503.22-40,564.06

Finding the Fourth Proportional to 72,829.54, 100,503.22 and 40,564.06

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Solution

The fourth proportional to 72,829.54, 100,503.22 and 40,564.06 is: 55,977.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,829.54 : 100,503.22 = 40,564.06 : x
  2. Step 2: Convert to fraction form
    72,829.54/100,503.22 = 40,564.06/x
  3. Step 3: Cross multiply
    72,829.54x = 100,503.22 × 40,564.06
  4. Step 4: Simplify right side
    72,829.54x = 4,076,818,218.92
  5. Step 5: Solve for x
    x = 4,076,818,218.92/72,829.54
  6. Step 6: Final answer
    x = 55,977.54

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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.