Home / 79,039.01-109,072.45-43,228.24

Finding the Fourth Proportional to 79,039.01, 109,072.45 and 43,228.24

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Solution

The fourth proportional to 79,039.01, 109,072.45 and 43,228.24 is: 59,654.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,039.01 : 109,072.45 = 43,228.24 : x
  2. Step 2: Convert to fraction form
    79,039.01/109,072.45 = 43,228.24/x
  3. Step 3: Cross multiply
    79,039.01x = 109,072.45 × 43,228.24
  4. Step 4: Simplify right side
    79,039.01x = 4,715,010,045.99
  5. Step 5: Solve for x
    x = 4,715,010,045.99/79,039.01
  6. Step 6: Final answer
    x = 59,654.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.