Home / 84,682.21-127,023.36-21,507.07

Finding the Fourth Proportional to 84,682.21, 127,023.36 and 21,507.07

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Solution

The fourth proportional to 84,682.21, 127,023.36 and 21,507.07 is: 32,260.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,682.21 : 127,023.36 = 21,507.07 : x
  2. Step 2: Convert to fraction form
    84,682.21/127,023.36 = 21,507.07/x
  3. Step 3: Cross multiply
    84,682.21x = 127,023.36 × 21,507.07
  4. Step 4: Simplify right side
    84,682.21x = 2,731,900,316.58
  5. Step 5: Solve for x
    x = 2,731,900,316.58/84,682.21
  6. Step 6: Final answer
    x = 32,260.62

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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.