Home / 53,187.80-79,743.30-29,821.40

Finding the Fourth Proportional to 53,187.80, 79,743.30 and 29,821.40

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Solution

The fourth proportional to 53,187.80, 79,743.30 and 29,821.40 is: 44,710.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,187.80 : 79,743.30 = 29,821.40 : x
  2. Step 2: Convert to fraction form
    53,187.80/79,743.30 = 29,821.40/x
  3. Step 3: Cross multiply
    53,187.80x = 79,743.30 × 29,821.40
  4. Step 4: Simplify right side
    53,187.80x = 2,378,056,846.62
  5. Step 5: Solve for x
    x = 2,378,056,846.62/53,187.80
  6. Step 6: Final answer
    x = 44,710.57

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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.