Home / 71,929.44-99,263.06-40,100.36

Finding the Fourth Proportional to 71,929.44, 99,263.06 and 40,100.36

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Solution

The fourth proportional to 71,929.44, 99,263.06 and 40,100.36 is: 55,338.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,929.44 : 99,263.06 = 40,100.36 : x
  2. Step 2: Convert to fraction form
    71,929.44/99,263.06 = 40,100.36/x
  3. Step 3: Cross multiply
    71,929.44x = 99,263.06 × 40,100.36
  4. Step 4: Simplify right side
    71,929.44x = 3,980,484,440.70
  5. Step 5: Solve for x
    x = 3,980,484,440.70/71,929.44
  6. Step 6: Final answer
    x = 55,338.74

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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.