Home / 76,386.58-114,573.99-31,395.63

Finding the Fourth Proportional to 76,386.58, 114,573.99 and 31,395.63

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Solution

The fourth proportional to 76,386.58, 114,573.99 and 31,395.63 is: 47,091.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,386.58 : 114,573.99 = 31,395.63 : x
  2. Step 2: Convert to fraction form
    76,386.58/114,573.99 = 31,395.63/x
  3. Step 3: Cross multiply
    76,386.58x = 114,573.99 × 31,395.63
  4. Step 4: Simplify right side
    76,386.58x = 3,597,123,145.05
  5. Step 5: Solve for x
    x = 3,597,123,145.05/76,386.58
  6. Step 6: Final answer
    x = 47,091.04

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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.