Home / 45,335.05-62,571.32-28,971.79

Finding the Fourth Proportional to 45,335.05, 62,571.32 and 28,971.79

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Solution

The fourth proportional to 45,335.05, 62,571.32 and 28,971.79 is: 39,986.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,335.05 : 62,571.32 = 28,971.79 : x
  2. Step 2: Convert to fraction form
    45,335.05/62,571.32 = 28,971.79/x
  3. Step 3: Cross multiply
    45,335.05x = 62,571.32 × 28,971.79
  4. Step 4: Simplify right side
    45,335.05x = 1,812,803,143.06
  5. Step 5: Solve for x
    x = 1,812,803,143.06/45,335.05
  6. Step 6: Final answer
    x = 39,986.79

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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.