Home / 81,623.36-112,634.05-45,806.45

Finding the Fourth Proportional to 81,623.36, 112,634.05 and 45,806.45

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Solution

The fourth proportional to 81,623.36, 112,634.05 and 45,806.45 is: 63,209.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,623.36 : 112,634.05 = 45,806.45 : x
  2. Step 2: Convert to fraction form
    81,623.36/112,634.05 = 45,806.45/x
  3. Step 3: Cross multiply
    81,623.36x = 112,634.05 × 45,806.45
  4. Step 4: Simplify right side
    81,623.36x = 5,159,365,895.21
  5. Step 5: Solve for x
    x = 5,159,365,895.21/81,623.36
  6. Step 6: Final answer
    x = 63,209.43

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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.