Home / 42,158.89-63,230.22-19,663.36

Finding the Fourth Proportional to 42,158.89, 63,230.22 and 19,663.36

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Solution

The fourth proportional to 42,158.89, 63,230.22 and 19,663.36 is: 29,491.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,158.89 : 63,230.22 = 19,663.36 : x
  2. Step 2: Convert to fraction form
    42,158.89/63,230.22 = 19,663.36/x
  3. Step 3: Cross multiply
    42,158.89x = 63,230.22 × 19,663.36
  4. Step 4: Simplify right side
    42,158.89x = 1,243,318,578.74
  5. Step 5: Solve for x
    x = 1,243,318,578.74/42,158.89
  6. Step 6: Final answer
    x = 29,491.26

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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.