Home / 76,911.08-115,373.34-21,507.24

Finding the Fourth Proportional to 76,911.08, 115,373.34 and 21,507.24

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Solution

The fourth proportional to 76,911.08, 115,373.34 and 21,507.24 is: 32,262.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,911.08 : 115,373.34 = 21,507.24 : x
  2. Step 2: Convert to fraction form
    76,911.08/115,373.34 = 21,507.24/x
  3. Step 3: Cross multiply
    76,911.08x = 115,373.34 × 21,507.24
  4. Step 4: Simplify right side
    76,911.08x = 2,481,362,112.98
  5. Step 5: Solve for x
    x = 2,481,362,112.98/76,911.08
  6. Step 6: Final answer
    x = 32,262.74

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1.5x scale

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.