Home / 79,280.34-109,441.77-55,500.36

Finding the Fourth Proportional to 79,280.34, 109,441.77 and 55,500.36

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Solution

The fourth proportional to 79,280.34, 109,441.77 and 55,500.36 is: 76,614.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,280.34 : 109,441.77 = 55,500.36 : x
  2. Step 2: Convert to fraction form
    79,280.34/109,441.77 = 55,500.36/x
  3. Step 3: Cross multiply
    79,280.34x = 109,441.77 × 55,500.36
  4. Step 4: Simplify right side
    79,280.34x = 6,074,057,634.04
  5. Step 5: Solve for x
    x = 6,074,057,634.04/79,280.34
  6. Step 6: Final answer
    x = 76,614.93

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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.