Home / 81,321.85-112,221.48-45,510.94

Finding the Fourth Proportional to 81,321.85, 112,221.48 and 45,510.94

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Solution

The fourth proportional to 81,321.85, 112,221.48 and 45,510.94 is: 62,803.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,321.85 : 112,221.48 = 45,510.94 : x
  2. Step 2: Convert to fraction form
    81,321.85/112,221.48 = 45,510.94/x
  3. Step 3: Cross multiply
    81,321.85x = 112,221.48 × 45,510.94
  4. Step 4: Simplify right side
    81,321.85x = 5,107,305,042.99
  5. Step 5: Solve for x
    x = 5,107,305,042.99/81,321.85
  6. Step 6: Final answer
    x = 62,803.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.