Home / 42,115.90-63,173.25-12,533.89

Finding the Fourth Proportional to 42,115.90, 63,173.25 and 12,533.89

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Solution

The fourth proportional to 42,115.90, 63,173.25 and 12,533.89 is: 18,800.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,115.90 : 63,173.25 = 12,533.89 : x
  2. Step 2: Convert to fraction form
    42,115.90/63,173.25 = 12,533.89/x
  3. Step 3: Cross multiply
    42,115.90x = 63,173.25 × 12,533.89
  4. Step 4: Simplify right side
    42,115.90x = 791,806,566.44
  5. Step 5: Solve for x
    x = 791,806,566.44/42,115.90
  6. Step 6: Final answer
    x = 18,800.66

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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.