Home / 76,690.37-115,052.84-23,387.06

Finding the Fourth Proportional to 76,690.37, 115,052.84 and 23,387.06

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Solution

The fourth proportional to 76,690.37, 115,052.84 and 23,387.06 is: 35,085.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,690.37 : 115,052.84 = 23,387.06 : x
  2. Step 2: Convert to fraction form
    76,690.37/115,052.84 = 23,387.06/x
  3. Step 3: Cross multiply
    76,690.37x = 115,052.84 × 23,387.06
  4. Step 4: Simplify right side
    76,690.37x = 2,690,746,980.05
  5. Step 5: Solve for x
    x = 2,690,746,980.05/76,690.37
  6. Step 6: Final answer
    x = 35,085.85

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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.