Home / 76,814.07-115,220.96-21,410.07

Finding the Fourth Proportional to 76,814.07, 115,220.96 and 21,410.07

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Solution

The fourth proportional to 76,814.07, 115,220.96 and 21,410.07 is: 32,115.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,814.07 : 115,220.96 = 21,410.07 : x
  2. Step 2: Convert to fraction form
    76,814.07/115,220.96 = 21,410.07/x
  3. Step 3: Cross multiply
    76,814.07x = 115,220.96 × 21,410.07
  4. Step 4: Simplify right side
    76,814.07x = 2,466,888,819.07
  5. Step 5: Solve for x
    x = 2,466,888,819.07/76,814.07
  6. Step 6: Final answer
    x = 32,115.06

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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.