Home / 71,901.85-99,225.53-40,069.66

Finding the Fourth Proportional to 71,901.85, 99,225.53 and 40,069.66

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Solution

The fourth proportional to 71,901.85, 99,225.53 and 40,069.66 is: 55,296.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,901.85 : 99,225.53 = 40,069.66 : x
  2. Step 2: Convert to fraction form
    71,901.85/99,225.53 = 40,069.66/x
  3. Step 3: Cross multiply
    71,901.85x = 99,225.53 × 40,069.66
  4. Step 4: Simplify right side
    71,901.85x = 3,975,933,250.42
  5. Step 5: Solve for x
    x = 3,975,933,250.42/71,901.85
  6. Step 6: Final answer
    x = 55,296.68

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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.