Home / 76,320.82-105,374.69-47,651.68

Finding the Fourth Proportional to 76,320.82, 105,374.69 and 47,651.68

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Solution

The fourth proportional to 76,320.82, 105,374.69 and 47,651.68 is: 65,791.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,320.82 : 105,374.69 = 47,651.68 : x
  2. Step 2: Convert to fraction form
    76,320.82/105,374.69 = 47,651.68/x
  3. Step 3: Cross multiply
    76,320.82x = 105,374.69 × 47,651.68
  4. Step 4: Simplify right side
    76,320.82x = 5,021,281,007.98
  5. Step 5: Solve for x
    x = 5,021,281,007.98/76,320.82
  6. Step 6: Final answer
    x = 65,791.76

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1.5x scale

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.