Home / 82,213.80-123,378.30-52,703.40

Finding the Fourth Proportional to 82,213.80, 123,378.30 and 52,703.40

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Solution

The fourth proportional to 82,213.80, 123,378.30 and 52,703.40 is: 79,092.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,213.80 : 123,378.30 = 52,703.40 : x
  2. Step 2: Convert to fraction form
    82,213.80/123,378.30 = 52,703.40/x
  3. Step 3: Cross multiply
    82,213.80x = 123,378.30 × 52,703.40
  4. Step 4: Simplify right side
    82,213.80x = 6,502,455,896.22
  5. Step 5: Solve for x
    x = 6,502,455,896.22/82,213.80
  6. Step 6: Final answer
    x = 79,092.02

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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.