Home / 80,712.82-121,088.68-25,308.82

Finding the Fourth Proportional to 80,712.82, 121,088.68 and 25,308.82

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Solution

The fourth proportional to 80,712.82, 121,088.68 and 25,308.82 is: 37,969.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,712.82 : 121,088.68 = 25,308.82 : x
  2. Step 2: Convert to fraction form
    80,712.82/121,088.68 = 25,308.82/x
  3. Step 3: Cross multiply
    80,712.82x = 121,088.68 × 25,308.82
  4. Step 4: Simplify right side
    80,712.82x = 3,064,611,606.16
  5. Step 5: Solve for x
    x = 3,064,611,606.16/80,712.82
  6. Step 6: Final answer
    x = 37,969.33

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1.5x scale

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.