Home / 86,150.34-118,898.64-48,431.88

Finding the Fourth Proportional to 86,150.34, 118,898.64 and 48,431.88

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Solution

The fourth proportional to 86,150.34, 118,898.64 and 48,431.88 is: 66,842.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,150.34 : 118,898.64 = 48,431.88 : x
  2. Step 2: Convert to fraction form
    86,150.34/118,898.64 = 48,431.88/x
  3. Step 3: Cross multiply
    86,150.34x = 118,898.64 × 48,431.88
  4. Step 4: Simplify right side
    86,150.34x = 5,758,484,664.64
  5. Step 5: Solve for x
    x = 5,758,484,664.64/86,150.34
  6. Step 6: Final answer
    x = 66,842.27

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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.