Home / 81,010.64-121,528.92-34,263.92

Finding the Fourth Proportional to 81,010.64, 121,528.92 and 34,263.92

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Solution

The fourth proportional to 81,010.64, 121,528.92 and 34,263.92 is: 51,401.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,010.64 : 121,528.92 = 34,263.92 : x
  2. Step 2: Convert to fraction form
    81,010.64/121,528.92 = 34,263.92/x
  3. Step 3: Cross multiply
    81,010.64x = 121,528.92 × 34,263.92
  4. Step 4: Simplify right side
    81,010.64x = 4,164,057,192.57
  5. Step 5: Solve for x
    x = 4,164,057,192.57/81,010.64
  6. Step 6: Final answer
    x = 51,401.36

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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.