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Finding the Fourth Proportional to 86,957.73, 130,495.05 and 30,797.64

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Solution

The fourth proportional to 86,957.73, 130,495.05 and 30,797.64 is: 46,217.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,957.73 : 130,495.05 = 30,797.64 : x
  2. Step 2: Convert to fraction form
    86,957.73/130,495.05 = 30,797.64/x
  3. Step 3: Cross multiply
    86,957.73x = 130,495.05 × 30,797.64
  4. Step 4: Simplify right side
    86,957.73x = 4,018,939,571.68
  5. Step 5: Solve for x
    x = 4,018,939,571.68/86,957.73
  6. Step 6: Final answer
    x = 46,217.16

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.