Home / 52,744.10-79,087.77-21,138.30

Finding the Fourth Proportional to 52,744.10, 79,087.77 and 21,138.30

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Solution

The fourth proportional to 52,744.10, 79,087.77 and 21,138.30 is: 31,696.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,744.10 : 79,087.77 = 21,138.30 : x
  2. Step 2: Convert to fraction form
    52,744.10/79,087.77 = 21,138.30/x
  3. Step 3: Cross multiply
    52,744.10x = 79,087.77 × 21,138.30
  4. Step 4: Simplify right side
    52,744.10x = 1,671,781,008.59
  5. Step 5: Solve for x
    x = 1,671,781,008.59/52,744.10
  6. Step 6: Final answer
    x = 31,696.08

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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.