Home / 81,277.35-121,903.72-22,117.63

Finding the Fourth Proportional to 81,277.35, 121,903.72 and 22,117.63

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Solution

The fourth proportional to 81,277.35, 121,903.72 and 22,117.63 is: 33,173.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,277.35 : 121,903.72 = 22,117.63 : x
  2. Step 2: Convert to fraction form
    81,277.35/121,903.72 = 22,117.63/x
  3. Step 3: Cross multiply
    81,277.35x = 121,903.72 × 22,117.63
  4. Step 4: Simplify right side
    81,277.35x = 2,696,221,679.26
  5. Step 5: Solve for x
    x = 2,696,221,679.26/81,277.35
  6. Step 6: Final answer
    x = 33,173.10

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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.