Home / 70,544.85-105,777.18-54,528.72

Finding the Fourth Proportional to 70,544.85, 105,777.18 and 54,528.72

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Solution

The fourth proportional to 70,544.85, 105,777.18 and 54,528.72 is: 81,762.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,544.85 : 105,777.18 = 54,528.72 : x
  2. Step 2: Convert to fraction form
    70,544.85/105,777.18 = 54,528.72/x
  3. Step 3: Cross multiply
    70,544.85x = 105,777.18 × 54,528.72
  4. Step 4: Simplify right side
    70,544.85x = 5,767,894,230.61
  5. Step 5: Solve for x
    x = 5,767,894,230.61/70,544.85
  6. Step 6: Final answer
    x = 81,762.09

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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.