Home / 42,125.30-63,137.70-19,605.68

Finding the Fourth Proportional to 42,125.30, 63,137.70 and 19,605.68

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Solution

The fourth proportional to 42,125.30, 63,137.70 and 19,605.68 is: 29,385.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,125.30 : 63,137.70 = 19,605.68 : x
  2. Step 2: Convert to fraction form
    42,125.30/63,137.70 = 19,605.68/x
  3. Step 3: Cross multiply
    42,125.30x = 63,137.70 × 19,605.68
  4. Step 4: Simplify right side
    42,125.30x = 1,237,857,542.14
  5. Step 5: Solve for x
    x = 1,237,857,542.14/42,125.30
  6. Step 6: Final answer
    x = 29,385.13

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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.