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Finding the Fourth Proportional to 86,962.56, 130,367.04 and 37,687.68

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Solution

The fourth proportional to 86,962.56, 130,367.04 and 37,687.68 is: 56,498.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,962.56 : 130,367.04 = 37,687.68 : x
  2. Step 2: Convert to fraction form
    86,962.56/130,367.04 = 37,687.68/x
  3. Step 3: Cross multiply
    86,962.56x = 130,367.04 × 37,687.68
  4. Step 4: Simplify right side
    86,962.56x = 4,913,231,286.07
  5. Step 5: Solve for x
    x = 4,913,231,286.07/86,962.56
  6. Step 6: Final answer
    x = 56,498.24

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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.