Home / 84,761.48-127,142.20-22,431.98

Finding the Fourth Proportional to 84,761.48, 127,142.20 and 22,431.98

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Solution

The fourth proportional to 84,761.48, 127,142.20 and 22,431.98 is: 33,647.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,761.48 : 127,142.20 = 22,431.98 : x
  2. Step 2: Convert to fraction form
    84,761.48/127,142.20 = 22,431.98/x
  3. Step 3: Cross multiply
    84,761.48x = 127,142.20 × 22,431.98
  4. Step 4: Simplify right side
    84,761.48x = 2,852,051,287.56
  5. Step 5: Solve for x
    x = 2,852,051,287.56/84,761.48
  6. Step 6: Final answer
    x = 33,647.96

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1.5x scale

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.