Home / 72,984.96-100,719.40-41,153.80

Finding the Fourth Proportional to 72,984.96, 100,719.40 and 41,153.80

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Solution

The fourth proportional to 72,984.96, 100,719.40 and 41,153.80 is: 56,792.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,984.96 : 100,719.40 = 41,153.80 : x
  2. Step 2: Convert to fraction form
    72,984.96/100,719.40 = 41,153.80/x
  3. Step 3: Cross multiply
    72,984.96x = 100,719.40 × 41,153.80
  4. Step 4: Simplify right side
    72,984.96x = 4,144,986,043.72
  5. Step 5: Solve for x
    x = 4,144,986,043.72/72,984.96
  6. Step 6: Final answer
    x = 56,792.33

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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.