Home / 86,777.12-119,732.99-54,927.52

Finding the Fourth Proportional to 86,777.12, 119,732.99 and 54,927.52

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Solution

The fourth proportional to 86,777.12, 119,732.99 and 54,927.52 is: 75,787.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,777.12 : 119,732.99 = 54,927.52 : x
  2. Step 2: Convert to fraction form
    86,777.12/119,732.99 = 54,927.52/x
  3. Step 3: Cross multiply
    86,777.12x = 119,732.99 × 54,927.52
  4. Step 4: Simplify right side
    86,777.12x = 6,576,635,628.91
  5. Step 5: Solve for x
    x = 6,576,635,628.91/86,777.12
  6. Step 6: Final answer
    x = 75,787.67

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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.