Home / 84,956.48-127,438.72-25,800.64

Finding the Fourth Proportional to 84,956.48, 127,438.72 and 25,800.64

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Solution

The fourth proportional to 84,956.48, 127,438.72 and 25,800.64 is: 38,702.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,956.48 : 127,438.72 = 25,800.64 : x
  2. Step 2: Convert to fraction form
    84,956.48/127,438.72 = 25,800.64/x
  3. Step 3: Cross multiply
    84,956.48x = 127,438.72 × 25,800.64
  4. Step 4: Simplify right side
    84,956.48x = 3,288,000,536.78
  5. Step 5: Solve for x
    x = 3,288,000,536.78/84,956.48
  6. Step 6: Final answer
    x = 38,702.17

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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.