Home / 52,655.77-78,984.06-13,213.09

Finding the Fourth Proportional to 52,655.77, 78,984.06 and 13,213.09

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Solution

The fourth proportional to 52,655.77, 78,984.06 and 13,213.09 is: 19,819.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,655.77 : 78,984.06 = 13,213.09 : x
  2. Step 2: Convert to fraction form
    52,655.77/78,984.06 = 13,213.09/x
  3. Step 3: Cross multiply
    52,655.77x = 78,984.06 × 13,213.09
  4. Step 4: Simplify right side
    52,655.77x = 1,043,623,493.35
  5. Step 5: Solve for x
    x = 1,043,623,493.35/52,655.77
  6. Step 6: Final answer
    x = 19,819.74

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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.