Home / 127,621.64-191,425.48-38,867.72

Finding the Fourth Proportional to 127,621.64, 191,425.48 and 38,867.72

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Solution

The fourth proportional to 127,621.64, 191,425.48 and 38,867.72 is: 58,299.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,621.64 : 191,425.48 = 38,867.72 : x
  2. Step 2: Convert to fraction form
    127,621.64/191,425.48 = 38,867.72/x
  3. Step 3: Cross multiply
    127,621.64x = 191,425.48 × 38,867.72
  4. Step 4: Simplify right side
    127,621.64x = 7,440,270,903.21
  5. Step 5: Solve for x
    x = 7,440,270,903.21/127,621.64
  6. Step 6: Final answer
    x = 58,299.44

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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.