Home / 79,090.47-109,144.85-43,280.48

Finding the Fourth Proportional to 79,090.47, 109,144.85 and 43,280.48

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Solution

The fourth proportional to 79,090.47, 109,144.85 and 43,280.48 is: 59,727.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,090.47 : 109,144.85 = 43,280.48 : x
  2. Step 2: Convert to fraction form
    79,090.47/109,144.85 = 43,280.48/x
  3. Step 3: Cross multiply
    79,090.47x = 109,144.85 × 43,280.48
  4. Step 4: Simplify right side
    79,090.47x = 4,723,840,735.40
  5. Step 5: Solve for x
    x = 4,723,840,735.40/79,090.47
  6. Step 6: Final answer
    x = 59,727.05

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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.