Home / 76,185.48-114,296.40-31,787.56

Finding the Fourth Proportional to 76,185.48, 114,296.40 and 31,787.56

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Solution

The fourth proportional to 76,185.48, 114,296.40 and 31,787.56 is: 47,688.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,185.48 : 114,296.40 = 31,787.56 : x
  2. Step 2: Convert to fraction form
    76,185.48/114,296.40 = 31,787.56/x
  3. Step 3: Cross multiply
    76,185.48x = 114,296.40 × 31,787.56
  4. Step 4: Simplify right side
    76,185.48x = 3,633,203,672.78
  5. Step 5: Solve for x
    x = 3,633,203,672.78/76,185.48
  6. Step 6: Final answer
    x = 47,688.93

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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.