Home / 83,632.32-125,415.77-30,311.64

Finding the Fourth Proportional to 83,632.32, 125,415.77 and 30,311.64

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Solution

The fourth proportional to 83,632.32, 125,415.77 and 30,311.64 is: 45,455.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,632.32 : 125,415.77 = 30,311.64 : x
  2. Step 2: Convert to fraction form
    83,632.32/125,415.77 = 30,311.64/x
  3. Step 3: Cross multiply
    83,632.32x = 125,415.77 × 30,311.64
  4. Step 4: Simplify right side
    83,632.32x = 3,801,557,519.00
  5. Step 5: Solve for x
    x = 3,801,557,519.00/83,632.32
  6. Step 6: Final answer
    x = 45,455.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.