Home / 76,852.31-106,055.99-42,860.84

Finding the Fourth Proportional to 76,852.31, 106,055.99 and 42,860.84

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Solution

The fourth proportional to 76,852.31, 106,055.99 and 42,860.84 is: 59,147.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,852.31 : 106,055.99 = 42,860.84 : x
  2. Step 2: Convert to fraction form
    76,852.31/106,055.99 = 42,860.84/x
  3. Step 3: Cross multiply
    76,852.31x = 106,055.99 × 42,860.84
  4. Step 4: Simplify right side
    76,852.31x = 4,545,648,073.85
  5. Step 5: Solve for x
    x = 4,545,648,073.85/76,852.31
  6. Step 6: Final answer
    x = 59,147.84

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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.