Home / 80,518.72-111,182.08-52,272.64

Finding the Fourth Proportional to 80,518.72, 111,182.08 and 52,272.64

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Solution

The fourth proportional to 80,518.72, 111,182.08 and 52,272.64 is: 72,179.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,518.72 : 111,182.08 = 52,272.64 : x
  2. Step 2: Convert to fraction form
    80,518.72/111,182.08 = 52,272.64/x
  3. Step 3: Cross multiply
    80,518.72x = 111,182.08 × 52,272.64
  4. Step 4: Simplify right side
    80,518.72x = 5,811,780,842.29
  5. Step 5: Solve for x
    x = 5,811,780,842.29/80,518.72
  6. Step 6: Final answer
    x = 72,179.25

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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.