Home / 42,116.90-63,120.72-17,127.86

Finding the Fourth Proportional to 42,116.90, 63,120.72 and 17,127.86

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Solution

The fourth proportional to 42,116.90, 63,120.72 and 17,127.86 is: 25,669.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,116.90 : 63,120.72 = 17,127.86 : x
  2. Step 2: Convert to fraction form
    42,116.90/63,120.72 = 17,127.86/x
  3. Step 3: Cross multiply
    42,116.90x = 63,120.72 × 17,127.86
  4. Step 4: Simplify right side
    42,116.90x = 1,081,122,855.26
  5. Step 5: Solve for x
    x = 1,081,122,855.26/42,116.90
  6. Step 6: Final answer
    x = 25,669.57

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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.