Home / 81,576.44-112,615.04-54,709.12

Finding the Fourth Proportional to 81,576.44, 112,615.04 and 54,709.12

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Solution

The fourth proportional to 81,576.44, 112,615.04 and 54,709.12 is: 75,525.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,576.44 : 112,615.04 = 54,709.12 : x
  2. Step 2: Convert to fraction form
    81,576.44/112,615.04 = 54,709.12/x
  3. Step 3: Cross multiply
    81,576.44x = 112,615.04 × 54,709.12
  4. Step 4: Simplify right side
    81,576.44x = 6,161,069,737.16
  5. Step 5: Solve for x
    x = 6,161,069,737.16/81,576.44
  6. Step 6: Final answer
    x = 75,525.11

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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.