Home / 71,941.88-99,276.17-40,104.63

Finding the Fourth Proportional to 71,941.88, 99,276.17 and 40,104.63

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Solution

The fourth proportional to 71,941.88, 99,276.17 and 40,104.63 is: 55,342.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,941.88 : 99,276.17 = 40,104.63 : x
  2. Step 2: Convert to fraction form
    71,941.88/99,276.17 = 40,104.63/x
  3. Step 3: Cross multiply
    71,941.88x = 99,276.17 × 40,104.63
  4. Step 4: Simplify right side
    71,941.88x = 3,981,433,865.14
  5. Step 5: Solve for x
    x = 3,981,433,865.14/71,941.88
  6. Step 6: Final answer
    x = 55,342.36

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1.5x scale

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.