Home / 52,656.06-78,984.09-21,080.34

Finding the Fourth Proportional to 52,656.06, 78,984.09 and 21,080.34

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Solution

The fourth proportional to 52,656.06, 78,984.09 and 21,080.34 is: 31,620.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,656.06 : 78,984.09 = 21,080.34 : x
  2. Step 2: Convert to fraction form
    52,656.06/78,984.09 = 21,080.34/x
  3. Step 3: Cross multiply
    52,656.06x = 78,984.09 × 21,080.34
  4. Step 4: Simplify right side
    52,656.06x = 1,665,011,471.79
  5. Step 5: Solve for x
    x = 1,665,011,471.79/52,656.06
  6. Step 6: Final answer
    x = 31,620.51

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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.