Home / 76,782.47-105,961.53-42,794.44

Finding the Fourth Proportional to 76,782.47, 105,961.53 and 42,794.44

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Solution

The fourth proportional to 76,782.47, 105,961.53 and 42,794.44 is: 59,057.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,782.47 : 105,961.53 = 42,794.44 : x
  2. Step 2: Convert to fraction form
    76,782.47/105,961.53 = 42,794.44/x
  3. Step 3: Cross multiply
    76,782.47x = 105,961.53 × 42,794.44
  4. Step 4: Simplify right side
    76,782.47x = 4,534,564,337.89
  5. Step 5: Solve for x
    x = 4,534,564,337.89/76,782.47
  6. Step 6: Final answer
    x = 59,057.29

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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.