Home / 71,639.86-98,849-48,953.38

Finding the Fourth Proportional to 71,639.86, 98,849 and 48,953.38

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Solution

The fourth proportional to 71,639.86, 98,849 and 48,953.38 is: 67,546.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,639.86 : 98,849 = 48,953.38 : x
  2. Step 2: Convert to fraction form
    71,639.86/98,849 = 48,953.38/x
  3. Step 3: Cross multiply
    71,639.86x = 98,849 × 48,953.38
  4. Step 4: Simplify right side
    71,639.86x = 4,838,992,659.62
  5. Step 5: Solve for x
    x = 4,838,992,659.62/71,639.86
  6. Step 6: Final answer
    x = 67,546.09

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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.