Home / 76,136.76-114,038.84-31,628.58

Finding the Fourth Proportional to 76,136.76, 114,038.84 and 31,628.58

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Solution

The fourth proportional to 76,136.76, 114,038.84 and 31,628.58 is: 47,373.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,136.76 : 114,038.84 = 31,628.58 : x
  2. Step 2: Convert to fraction form
    76,136.76/114,038.84 = 31,628.58/x
  3. Step 3: Cross multiply
    76,136.76x = 114,038.84 × 31,628.58
  4. Step 4: Simplify right side
    76,136.76x = 3,606,886,047.56
  5. Step 5: Solve for x
    x = 3,606,886,047.56/76,136.76
  6. Step 6: Final answer
    x = 47,373.78

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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.