Home / 79,688.48-109,955.06-49,481.16

Finding the Fourth Proportional to 79,688.48, 109,955.06 and 49,481.16

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Solution

The fourth proportional to 79,688.48, 109,955.06 and 49,481.16 is: 68,274.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,688.48 : 109,955.06 = 49,481.16 : x
  2. Step 2: Convert to fraction form
    79,688.48/109,955.06 = 49,481.16/x
  3. Step 3: Cross multiply
    79,688.48x = 109,955.06 × 49,481.16
  4. Step 4: Simplify right side
    79,688.48x = 5,440,703,916.67
  5. Step 5: Solve for x
    x = 5,440,703,916.67/79,688.48
  6. Step 6: Final answer
    x = 68,274.66

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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.