Home / 76,571.10-114,880.05-39,157.47

Finding the Fourth Proportional to 76,571.10, 114,880.05 and 39,157.47

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Solution

The fourth proportional to 76,571.10, 114,880.05 and 39,157.47 is: 58,748.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,571.10 : 114,880.05 = 39,157.47 : x
  2. Step 2: Convert to fraction form
    76,571.10/114,880.05 = 39,157.47/x
  3. Step 3: Cross multiply
    76,571.10x = 114,880.05 × 39,157.47
  4. Step 4: Simplify right side
    76,571.10x = 4,498,412,111.47
  5. Step 5: Solve for x
    x = 4,498,412,111.47/76,571.10
  6. Step 6: Final answer
    x = 58,748.17

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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.