Home / 80,763.36-121,093.20-53,028.96

Finding the Fourth Proportional to 80,763.36, 121,093.20 and 53,028.96

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Solution

The fourth proportional to 80,763.36, 121,093.20 and 53,028.96 is: 79,509.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,763.36 : 121,093.20 = 53,028.96 : x
  2. Step 2: Convert to fraction form
    80,763.36/121,093.20 = 53,028.96/x
  3. Step 3: Cross multiply
    80,763.36x = 121,093.20 × 53,028.96
  4. Step 4: Simplify right side
    80,763.36x = 6,421,446,459.07
  5. Step 5: Solve for x
    x = 6,421,446,459.07/80,763.36
  6. Step 6: Final answer
    x = 79,509.40

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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.