Home / 42,129.14-63,108.93-19,963.89

Finding the Fourth Proportional to 42,129.14, 63,108.93 and 19,963.89

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Solution

The fourth proportional to 42,129.14, 63,108.93 and 19,963.89 is: 29,905.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,129.14 : 63,108.93 = 19,963.89 : x
  2. Step 2: Convert to fraction form
    42,129.14/63,108.93 = 19,963.89/x
  3. Step 3: Cross multiply
    42,129.14x = 63,108.93 × 19,963.89
  4. Step 4: Simplify right side
    42,129.14x = 1,259,899,736.54
  5. Step 5: Solve for x
    x = 1,259,899,736.54/42,129.14
  6. Step 6: Final answer
    x = 29,905.66

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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.