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Finding the Fourth Proportional to 81,157.01, 112,068.49 and 50,582.29

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Solution

The fourth proportional to 81,157.01, 112,068.49 and 50,582.29 is: 69,848.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,157.01 : 112,068.49 = 50,582.29 : x
  2. Step 2: Convert to fraction form
    81,157.01/112,068.49 = 50,582.29/x
  3. Step 3: Cross multiply
    81,157.01x = 112,068.49 × 50,582.29
  4. Step 4: Simplify right side
    81,157.01x = 5,668,680,634.65
  5. Step 5: Solve for x
    x = 5,668,680,634.65/81,157.01
  6. Step 6: Final answer
    x = 69,848.32

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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.