Home / 42,137.01-63,217.26-12,555.81

Finding the Fourth Proportional to 42,137.01, 63,217.26 and 12,555.81

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Solution

The fourth proportional to 42,137.01, 63,217.26 and 12,555.81 is: 18,837.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,137.01 : 63,217.26 = 12,555.81 : x
  2. Step 2: Convert to fraction form
    42,137.01/63,217.26 = 12,555.81/x
  3. Step 3: Cross multiply
    42,137.01x = 63,217.26 × 12,555.81
  4. Step 4: Simplify right side
    42,137.01x = 793,743,905.28
  5. Step 5: Solve for x
    x = 793,743,905.28/42,137.01
  6. Step 6: Final answer
    x = 18,837.21

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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.