Home / 76,794.47-105,982.53-42,813.96

Finding the Fourth Proportional to 76,794.47, 105,982.53 and 42,813.96

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Solution

The fourth proportional to 76,794.47, 105,982.53 and 42,813.96 is: 59,086.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,794.47 : 105,982.53 = 42,813.96 : x
  2. Step 2: Convert to fraction form
    76,794.47/105,982.53 = 42,813.96/x
  3. Step 3: Cross multiply
    76,794.47x = 105,982.53 × 42,813.96
  4. Step 4: Simplify right side
    76,794.47x = 4,537,531,800.12
  5. Step 5: Solve for x
    x = 4,537,531,800.12/76,794.47
  6. Step 6: Final answer
    x = 59,086.70

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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.