Home / 81,347.06-121,971.99-33,904.96

Finding the Fourth Proportional to 81,347.06, 121,971.99 and 33,904.96

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Solution

The fourth proportional to 81,347.06, 121,971.99 and 33,904.96 is: 50,837.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,347.06 : 121,971.99 = 33,904.96 : x
  2. Step 2: Convert to fraction form
    81,347.06/121,971.99 = 33,904.96/x
  3. Step 3: Cross multiply
    81,347.06x = 121,971.99 × 33,904.96
  4. Step 4: Simplify right side
    81,347.06x = 4,135,455,264.28
  5. Step 5: Solve for x
    x = 4,135,455,264.28/81,347.06
  6. Step 6: Final answer
    x = 50,837.18

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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.