Home / 63,639-95,434.50-51,128.28

Finding the Fourth Proportional to 63,639, 95,434.50 and 51,128.28

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Solution

The fourth proportional to 63,639, 95,434.50 and 51,128.28 is: 76,673.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,639 : 95,434.50 = 51,128.28 : x
  2. Step 2: Convert to fraction form
    63,639/95,434.50 = 51,128.28/x
  3. Step 3: Cross multiply
    63,639x = 95,434.50 × 51,128.28
  4. Step 4: Simplify right side
    63,639x = 4,879,401,837.66
  5. Step 5: Solve for x
    x = 4,879,401,837.66/63,639
  6. Step 6: Final answer
    x = 76,673.14

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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.