Home / 87,788.34-121,213.06-53,843.67

Finding the Fourth Proportional to 87,788.34, 121,213.06 and 53,843.67

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Solution

The fourth proportional to 87,788.34, 121,213.06 and 53,843.67 is: 74,344.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,788.34 : 121,213.06 = 53,843.67 : x
  2. Step 2: Convert to fraction form
    87,788.34/121,213.06 = 53,843.67/x
  3. Step 3: Cross multiply
    87,788.34x = 121,213.06 × 53,843.67
  4. Step 4: Simplify right side
    87,788.34x = 6,526,555,867.72
  5. Step 5: Solve for x
    x = 6,526,555,867.72/87,788.34
  6. Step 6: Final answer
    x = 74,344.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.