Home / 84,862.49-127,277.33-80,647.65

Finding the Fourth Proportional to 84,862.49, 127,277.33 and 80,647.65

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Solution

The fourth proportional to 84,862.49, 127,277.33 and 80,647.65 is: 120,955.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,862.49 : 127,277.33 = 80,647.65 : x
  2. Step 2: Convert to fraction form
    84,862.49/127,277.33 = 80,647.65/x
  3. Step 3: Cross multiply
    84,862.49x = 127,277.33 × 80,647.65
  4. Step 4: Simplify right side
    84,862.49x = 10,264,617,159.54
  5. Step 5: Solve for x
    x = 10,264,617,159.54/84,862.49
  6. Step 6: Final answer
    x = 120,955.89

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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.