Home / 81,723.67-112,810.49-51,503.07

Finding the Fourth Proportional to 81,723.67, 112,810.49 and 51,503.07

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Solution

The fourth proportional to 81,723.67, 112,810.49 and 51,503.07 is: 71,094.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,723.67 : 112,810.49 = 51,503.07 : x
  2. Step 2: Convert to fraction form
    81,723.67/112,810.49 = 51,503.07/x
  3. Step 3: Cross multiply
    81,723.67x = 112,810.49 × 51,503.07
  4. Step 4: Simplify right side
    81,723.67x = 5,810,086,305.69
  5. Step 5: Solve for x
    x = 5,810,086,305.69/81,723.67
  6. Step 6: Final answer
    x = 71,094.29

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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.