Home / 80,741.25-121,131.45-25,337.25

Finding the Fourth Proportional to 80,741.25, 121,131.45 and 25,337.25

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Solution

The fourth proportional to 80,741.25, 121,131.45 and 25,337.25 is: 38,012.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,741.25 : 121,131.45 = 25,337.25 : x
  2. Step 2: Convert to fraction form
    80,741.25/121,131.45 = 25,337.25/x
  3. Step 3: Cross multiply
    80,741.25x = 121,131.45 × 25,337.25
  4. Step 4: Simplify right side
    80,741.25x = 3,069,137,831.51
  5. Step 5: Solve for x
    x = 3,069,137,831.51/80,741.25
  6. Step 6: Final answer
    x = 38,012.02

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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.