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Finding the Fourth Proportional to 86,256, 119,030.88 and 48,015.84

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Solution

The fourth proportional to 86,256, 119,030.88 and 48,015.84 is: 66,260.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,256 : 119,030.88 = 48,015.84 : x
  2. Step 2: Convert to fraction form
    86,256/119,030.88 = 48,015.84/x
  3. Step 3: Cross multiply
    86,256x = 119,030.88 × 48,015.84
  4. Step 4: Simplify right side
    86,256x = 5,715,367,689.14
  5. Step 5: Solve for x
    x = 5,715,367,689.14/86,256
  6. Step 6: Final answer
    x = 66,260.52

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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.