Home / 42,261.39-63,404.10-21,176.01

Finding the Fourth Proportional to 42,261.39, 63,404.10 and 21,176.01

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Solution

The fourth proportional to 42,261.39, 63,404.10 and 21,176.01 is: 31,770.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,261.39 : 63,404.10 = 21,176.01 : x
  2. Step 2: Convert to fraction form
    42,261.39/63,404.10 = 21,176.01/x
  3. Step 3: Cross multiply
    42,261.39x = 63,404.10 × 21,176.01
  4. Step 4: Simplify right side
    42,261.39x = 1,342,645,855.64
  5. Step 5: Solve for x
    x = 1,342,645,855.64/42,261.39
  6. Step 6: Final answer
    x = 31,770.04

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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.