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Finding the Fourth Proportional to 86,859.76, 130,292.46 and 29,933.08

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Solution

The fourth proportional to 86,859.76, 130,292.46 and 29,933.08 is: 44,900.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,859.76 : 130,292.46 = 29,933.08 : x
  2. Step 2: Convert to fraction form
    86,859.76/130,292.46 = 29,933.08/x
  3. Step 3: Cross multiply
    86,859.76x = 130,292.46 × 29,933.08
  4. Step 4: Simplify right side
    86,859.76x = 3,900,054,628.58
  5. Step 5: Solve for x
    x = 3,900,054,628.58/86,859.76
  6. Step 6: Final answer
    x = 44,900.59

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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.