Home / 42,369.99-63,553.32-12,787.02

Finding the Fourth Proportional to 42,369.99, 63,553.32 and 12,787.02

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Solution

The fourth proportional to 42,369.99, 63,553.32 and 12,787.02 is: 19,180.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,369.99 : 63,553.32 = 12,787.02 : x
  2. Step 2: Convert to fraction form
    42,369.99/63,553.32 = 12,787.02/x
  3. Step 3: Cross multiply
    42,369.99x = 63,553.32 × 12,787.02
  4. Step 4: Simplify right side
    42,369.99x = 812,657,573.91
  5. Step 5: Solve for x
    x = 812,657,573.91/42,369.99
  6. Step 6: Final answer
    x = 19,180.03

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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.