Home / 81,306.04-121,959.06-53,597.56

Finding the Fourth Proportional to 81,306.04, 121,959.06 and 53,597.56

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Solution

The fourth proportional to 81,306.04, 121,959.06 and 53,597.56 is: 80,396.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,306.04 : 121,959.06 = 53,597.56 : x
  2. Step 2: Convert to fraction form
    81,306.04/121,959.06 = 53,597.56/x
  3. Step 3: Cross multiply
    81,306.04x = 121,959.06 × 53,597.56
  4. Step 4: Simplify right side
    81,306.04x = 6,536,708,035.89
  5. Step 5: Solve for x
    x = 6,536,708,035.89/81,306.04
  6. Step 6: Final answer
    x = 80,396.34

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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.