Home / 71,967.12-99,315.09-41,770.50

Finding the Fourth Proportional to 71,967.12, 99,315.09 and 41,770.50

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Solution

The fourth proportional to 71,967.12, 99,315.09 and 41,770.50 is: 57,643.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,967.12 : 99,315.09 = 41,770.50 : x
  2. Step 2: Convert to fraction form
    71,967.12/99,315.09 = 41,770.50/x
  3. Step 3: Cross multiply
    71,967.12x = 99,315.09 × 41,770.50
  4. Step 4: Simplify right side
    71,967.12x = 4,148,440,966.85
  5. Step 5: Solve for x
    x = 4,148,440,966.85/71,967.12
  6. Step 6: Final answer
    x = 57,643.56

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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.