Home / 81,268.16-112,219.28-51,103.96

Finding the Fourth Proportional to 81,268.16, 112,219.28 and 51,103.96

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Solution

The fourth proportional to 81,268.16, 112,219.28 and 51,103.96 is: 70,566.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,268.16 : 112,219.28 = 51,103.96 : x
  2. Step 2: Convert to fraction form
    81,268.16/112,219.28 = 51,103.96/x
  3. Step 3: Cross multiply
    81,268.16x = 112,219.28 × 51,103.96
  4. Step 4: Simplify right side
    81,268.16x = 5,734,849,596.35
  5. Step 5: Solve for x
    x = 5,734,849,596.35/81,268.16
  6. Step 6: Final answer
    x = 70,566.99

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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.