Home / 81,072.48-111,877.92-45,261.52

Finding the Fourth Proportional to 81,072.48, 111,877.92 and 45,261.52

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Solution

The fourth proportional to 81,072.48, 111,877.92 and 45,261.52 is: 62,459.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,072.48 : 111,877.92 = 45,261.52 : x
  2. Step 2: Convert to fraction form
    81,072.48/111,877.92 = 45,261.52/x
  3. Step 3: Cross multiply
    81,072.48x = 111,877.92 × 45,261.52
  4. Step 4: Simplify right side
    81,072.48x = 5,063,764,713.64
  5. Step 5: Solve for x
    x = 5,063,764,713.64/81,072.48
  6. Step 6: Final answer
    x = 62,459.72

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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.