Home / 74,281.46-111,436.64-31,586.41

Finding the Fourth Proportional to 74,281.46, 111,436.64 and 31,586.41

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Solution

The fourth proportional to 74,281.46, 111,436.64 and 31,586.41 is: 47,385.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,281.46 : 111,436.64 = 31,586.41 : x
  2. Step 2: Convert to fraction form
    74,281.46/111,436.64 = 31,586.41/x
  3. Step 3: Cross multiply
    74,281.46x = 111,436.64 × 31,586.41
  4. Step 4: Simplify right side
    74,281.46x = 3,519,882,784.21
  5. Step 5: Solve for x
    x = 3,519,882,784.21/74,281.46
  6. Step 6: Final answer
    x = 47,385.75

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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.