Home / 77,272.51-115,908.77-42,193.03

Finding the Fourth Proportional to 77,272.51, 115,908.77 and 42,193.03

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Solution

The fourth proportional to 77,272.51, 115,908.77 and 42,193.03 is: 63,289.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,272.51 : 115,908.77 = 42,193.03 : x
  2. Step 2: Convert to fraction form
    77,272.51/115,908.77 = 42,193.03/x
  3. Step 3: Cross multiply
    77,272.51x = 115,908.77 × 42,193.03
  4. Step 4: Simplify right side
    77,272.51x = 4,890,542,209.87
  5. Step 5: Solve for x
    x = 4,890,542,209.87/77,272.51
  6. Step 6: Final answer
    x = 63,289.55

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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.