Home / 76,138.07-114,141.47-36,722.88

Finding the Fourth Proportional to 76,138.07, 114,141.47 and 36,722.88

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Solution

The fourth proportional to 76,138.07, 114,141.47 and 36,722.88 is: 55,052.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,138.07 : 114,141.47 = 36,722.88 : x
  2. Step 2: Convert to fraction form
    76,138.07/114,141.47 = 36,722.88/x
  3. Step 3: Cross multiply
    76,138.07x = 114,141.47 × 36,722.88
  4. Step 4: Simplify right side
    76,138.07x = 4,191,603,322.22
  5. Step 5: Solve for x
    x = 4,191,603,322.22/76,138.07
  6. Step 6: Final answer
    x = 55,052.66

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1.5x scale

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.