Home / 76,504.37-105,572.36-42,515.15

Finding the Fourth Proportional to 76,504.37, 105,572.36 and 42,515.15

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Solution

The fourth proportional to 76,504.37, 105,572.36 and 42,515.15 is: 58,668.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,504.37 : 105,572.36 = 42,515.15 : x
  2. Step 2: Convert to fraction form
    76,504.37/105,572.36 = 42,515.15/x
  3. Step 3: Cross multiply
    76,504.37x = 105,572.36 × 42,515.15
  4. Step 4: Simplify right side
    76,504.37x = 4,488,424,299.68
  5. Step 5: Solve for x
    x = 4,488,424,299.68/76,504.37
  6. Step 6: Final answer
    x = 58,668.87

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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.