Home / 79,090.48-109,144.85-43,280.49

Finding the Fourth Proportional to 79,090.48, 109,144.85 and 43,280.49

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Solution

The fourth proportional to 79,090.48, 109,144.85 and 43,280.49 is: 59,727.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,090.48 : 109,144.85 = 43,280.49 : x
  2. Step 2: Convert to fraction form
    79,090.48/109,144.85 = 43,280.49/x
  3. Step 3: Cross multiply
    79,090.48x = 109,144.85 × 43,280.49
  4. Step 4: Simplify right side
    79,090.48x = 4,723,842,588.98
  5. Step 5: Solve for x
    x = 4,723,842,588.98/79,090.48
  6. Step 6: Final answer
    x = 59,727.07

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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.