Home / 76,794.64-105,982.73-42,814.06

Finding the Fourth Proportional to 76,794.64, 105,982.73 and 42,814.06

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Solution

The fourth proportional to 76,794.64, 105,982.73 and 42,814.06 is: 59,086.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,794.64 : 105,982.73 = 42,814.06 : x
  2. Step 2: Convert to fraction form
    76,794.64/105,982.73 = 42,814.06/x
  3. Step 3: Cross multiply
    76,794.64x = 105,982.73 × 42,814.06
  4. Step 4: Simplify right side
    76,794.64x = 4,537,550,961.18
  5. Step 5: Solve for x
    x = 4,537,550,961.18/76,794.64
  6. Step 6: Final answer
    x = 59,086.82

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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.