Home / 67,242.42-100,769.23-53,140.45

Finding the Fourth Proportional to 67,242.42, 100,769.23 and 53,140.45

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Solution

The fourth proportional to 67,242.42, 100,769.23 and 53,140.45 is: 79,636.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,242.42 : 100,769.23 = 53,140.45 : x
  2. Step 2: Convert to fraction form
    67,242.42/100,769.23 = 53,140.45/x
  3. Step 3: Cross multiply
    67,242.42x = 100,769.23 × 53,140.45
  4. Step 4: Simplify right side
    67,242.42x = 5,354,922,228.35
  5. Step 5: Solve for x
    x = 5,354,922,228.35/67,242.42
  6. Step 6: Final answer
    x = 79,636.07

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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.