Home / 84,740.73-127,110.15-20,699.43

Finding the Fourth Proportional to 84,740.73, 127,110.15 and 20,699.43

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Solution

The fourth proportional to 84,740.73, 127,110.15 and 20,699.43 is: 31,048.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,740.73 : 127,110.15 = 20,699.43 : x
  2. Step 2: Convert to fraction form
    84,740.73/127,110.15 = 20,699.43/x
  3. Step 3: Cross multiply
    84,740.73x = 127,110.15 × 20,699.43
  4. Step 4: Simplify right side
    84,740.73x = 2,631,107,652.21
  5. Step 5: Solve for x
    x = 2,631,107,652.21/84,740.73
  6. Step 6: Final answer
    x = 31,048.91

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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.