Home / 81,106.66-121,663.34-27,835.25

Finding the Fourth Proportional to 81,106.66, 121,663.34 and 27,835.25

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Solution

The fourth proportional to 81,106.66, 121,663.34 and 27,835.25 is: 41,754.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,106.66 : 121,663.34 = 27,835.25 : x
  2. Step 2: Convert to fraction form
    81,106.66/121,663.34 = 27,835.25/x
  3. Step 3: Cross multiply
    81,106.66x = 121,663.34 × 27,835.25
  4. Step 4: Simplify right side
    81,106.66x = 3,386,529,484.74
  5. Step 5: Solve for x
    x = 3,386,529,484.74/81,106.66
  6. Step 6: Final answer
    x = 41,754.02

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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.