Home / 76,783.26-105,959.31-42,794.85

Finding the Fourth Proportional to 76,783.26, 105,959.31 and 42,794.85

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Solution

The fourth proportional to 76,783.26, 105,959.31 and 42,794.85 is: 59,056.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,783.26 : 105,959.31 = 42,794.85 : x
  2. Step 2: Convert to fraction form
    76,783.26/105,959.31 = 42,794.85/x
  3. Step 3: Cross multiply
    76,783.26x = 105,959.31 × 42,794.85
  4. Step 4: Simplify right side
    76,783.26x = 4,534,513,014.42
  5. Step 5: Solve for x
    x = 4,534,513,014.42/76,783.26
  6. Step 6: Final answer
    x = 59,056.01

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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.