Home / 84,859.93-127,306.31-28,709.19

Finding the Fourth Proportional to 84,859.93, 127,306.31 and 28,709.19

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Solution

The fourth proportional to 84,859.93, 127,306.31 and 28,709.19 is: 43,069.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,859.93 : 127,306.31 = 28,709.19 : x
  2. Step 2: Convert to fraction form
    84,859.93/127,306.31 = 28,709.19/x
  3. Step 3: Cross multiply
    84,859.93x = 127,306.31 × 28,709.19
  4. Step 4: Simplify right side
    84,859.93x = 3,654,861,041.99
  5. Step 5: Solve for x
    x = 3,654,861,041.99/84,859.93
  6. Step 6: Final answer
    x = 43,069.34

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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.