Home / 81,612.55-122,365.77-34,258.13

Finding the Fourth Proportional to 81,612.55, 122,365.77 and 34,258.13

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Solution

The fourth proportional to 81,612.55, 122,365.77 and 34,258.13 is: 51,364.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,612.55 : 122,365.77 = 34,258.13 : x
  2. Step 2: Convert to fraction form
    81,612.55/122,365.77 = 34,258.13/x
  3. Step 3: Cross multiply
    81,612.55x = 122,365.77 × 34,258.13
  4. Step 4: Simplify right side
    81,612.55x = 4,192,022,456.21
  5. Step 5: Solve for x
    x = 4,192,022,456.21/81,612.55
  6. Step 6: Final answer
    x = 51,364.92

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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.