Home / 80,743.81-111,416.43-44,931.28

Finding the Fourth Proportional to 80,743.81, 111,416.43 and 44,931.28

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Solution

The fourth proportional to 80,743.81, 111,416.43 and 44,931.28 is: 61,999.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,743.81 : 111,416.43 = 44,931.28 : x
  2. Step 2: Convert to fraction form
    80,743.81/111,416.43 = 44,931.28/x
  3. Step 3: Cross multiply
    80,743.81x = 111,416.43 × 44,931.28
  4. Step 4: Simplify right side
    80,743.81x = 5,006,082,812.93
  5. Step 5: Solve for x
    x = 5,006,082,812.93/80,743.81
  6. Step 6: Final answer
    x = 61,999.59

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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.