Home / 77,872.16-107,461.34-43,880.04

Finding the Fourth Proportional to 77,872.16, 107,461.34 and 43,880.04

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Solution

The fourth proportional to 77,872.16, 107,461.34 and 43,880.04 is: 60,553.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,872.16 : 107,461.34 = 43,880.04 : x
  2. Step 2: Convert to fraction form
    77,872.16/107,461.34 = 43,880.04/x
  3. Step 3: Cross multiply
    77,872.16x = 107,461.34 × 43,880.04
  4. Step 4: Simplify right side
    77,872.16x = 4,715,407,678.25
  5. Step 5: Solve for x
    x = 4,715,407,678.25/77,872.16
  6. Step 6: Final answer
    x = 60,553.19

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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.