Home / 79,189.05-109,280.91-43,380.35

Finding the Fourth Proportional to 79,189.05, 109,280.91 and 43,380.35

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Solution

The fourth proportional to 79,189.05, 109,280.91 and 43,380.35 is: 59,864.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,189.05 : 109,280.91 = 43,380.35 : x
  2. Step 2: Convert to fraction form
    79,189.05/109,280.91 = 43,380.35/x
  3. Step 3: Cross multiply
    79,189.05x = 109,280.91 × 43,380.35
  4. Step 4: Simplify right side
    79,189.05x = 4,740,643,577.71
  5. Step 5: Solve for x
    x = 4,740,643,577.71/79,189.05
  6. Step 6: Final answer
    x = 59,864.89

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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.