Home / 71,838.39-99,137.17-40,007.22

Finding the Fourth Proportional to 71,838.39, 99,137.17 and 40,007.22

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Solution

The fourth proportional to 71,838.39, 99,137.17 and 40,007.22 is: 55,210.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,838.39 : 99,137.17 = 40,007.22 : x
  2. Step 2: Convert to fraction form
    71,838.39/99,137.17 = 40,007.22/x
  3. Step 3: Cross multiply
    71,838.39x = 99,137.17 × 40,007.22
  4. Step 4: Simplify right side
    71,838.39x = 3,966,202,023.57
  5. Step 5: Solve for x
    x = 3,966,202,023.57/71,838.39
  6. Step 6: Final answer
    x = 55,210.06

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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.