Home / 76,515.20-114,659.80-37,025.28

Finding the Fourth Proportional to 76,515.20, 114,659.80 and 37,025.28

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Solution

The fourth proportional to 76,515.20, 114,659.80 and 37,025.28 is: 55,483.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,515.20 : 114,659.80 = 37,025.28 : x
  2. Step 2: Convert to fraction form
    76,515.20/114,659.80 = 37,025.28/x
  3. Step 3: Cross multiply
    76,515.20x = 114,659.80 × 37,025.28
  4. Step 4: Simplify right side
    76,515.20x = 4,245,311,199.74
  5. Step 5: Solve for x
    x = 4,245,311,199.74/76,515.20
  6. Step 6: Final answer
    x = 55,483.24

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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.