Home / 63,439.40-95,128.73-21,307.79

Finding the Fourth Proportional to 63,439.40, 95,128.73 and 21,307.79

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Solution

The fourth proportional to 63,439.40, 95,128.73 and 21,307.79 is: 31,951.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,439.40 : 95,128.73 = 21,307.79 : x
  2. Step 2: Convert to fraction form
    63,439.40/95,128.73 = 21,307.79/x
  3. Step 3: Cross multiply
    63,439.40x = 95,128.73 × 21,307.79
  4. Step 4: Simplify right side
    63,439.40x = 2,026,983,212.99
  5. Step 5: Solve for x
    x = 2,026,983,212.99/63,439.40
  6. Step 6: Final answer
    x = 31,951.49

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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.