Home / 76,198.86-105,155.91-45,603.45

Finding the Fourth Proportional to 76,198.86, 105,155.91 and 45,603.45

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Solution

The fourth proportional to 76,198.86, 105,155.91 and 45,603.45 is: 62,933.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,198.86 : 105,155.91 = 45,603.45 : x
  2. Step 2: Convert to fraction form
    76,198.86/105,155.91 = 45,603.45/x
  3. Step 3: Cross multiply
    76,198.86x = 105,155.91 × 45,603.45
  4. Step 4: Simplify right side
    76,198.86x = 4,795,472,283.89
  5. Step 5: Solve for x
    x = 4,795,472,283.89/76,198.86
  6. Step 6: Final answer
    x = 62,933.65

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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.