Home / 42,156.62-63,239.79-14,080.40

Finding the Fourth Proportional to 42,156.62, 63,239.79 and 14,080.40

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Solution

The fourth proportional to 42,156.62, 63,239.79 and 14,080.40 is: 21,122.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,156.62 : 63,239.79 = 14,080.40 : x
  2. Step 2: Convert to fraction form
    42,156.62/63,239.79 = 14,080.40/x
  3. Step 3: Cross multiply
    42,156.62x = 63,239.79 × 14,080.40
  4. Step 4: Simplify right side
    42,156.62x = 890,441,539.12
  5. Step 5: Solve for x
    x = 890,441,539.12/42,156.62
  6. Step 6: Final answer
    x = 21,122.22

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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.