Home / 42,126.13-63,237.79-21,393.37

Finding the Fourth Proportional to 42,126.13, 63,237.79 and 21,393.37

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Solution

The fourth proportional to 42,126.13, 63,237.79 and 21,393.37 is: 32,114.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,126.13 : 63,237.79 = 21,393.37 : x
  2. Step 2: Convert to fraction form
    42,126.13/63,237.79 = 21,393.37/x
  3. Step 3: Cross multiply
    42,126.13x = 63,237.79 × 21,393.37
  4. Step 4: Simplify right side
    42,126.13x = 1,352,869,123.26
  5. Step 5: Solve for x
    x = 1,352,869,123.26/42,126.13
  6. Step 6: Final answer
    x = 32,114.73

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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.