Home / 81,313.35-121,792.38-33,784.35

Finding the Fourth Proportional to 81,313.35, 121,792.38 and 33,784.35

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Solution

The fourth proportional to 81,313.35, 121,792.38 and 33,784.35 is: 50,602.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,313.35 : 121,792.38 = 33,784.35 : x
  2. Step 2: Convert to fraction form
    81,313.35/121,792.38 = 33,784.35/x
  3. Step 3: Cross multiply
    81,313.35x = 121,792.38 × 33,784.35
  4. Step 4: Simplify right side
    81,313.35x = 4,114,676,393.25
  5. Step 5: Solve for x
    x = 4,114,676,393.25/81,313.35
  6. Step 6: Final answer
    x = 50,602.72

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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.