Home / 84,309.29-116,211.69-57,076.79

Finding the Fourth Proportional to 84,309.29, 116,211.69 and 57,076.79

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Solution

The fourth proportional to 84,309.29, 116,211.69 and 57,076.79 is: 78,674.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,309.29 : 116,211.69 = 57,076.79 : x
  2. Step 2: Convert to fraction form
    84,309.29/116,211.69 = 57,076.79/x
  3. Step 3: Cross multiply
    84,309.29x = 116,211.69 × 57,076.79
  4. Step 4: Simplify right side
    84,309.29x = 6,632,990,225.68
  5. Step 5: Solve for x
    x = 6,632,990,225.68/84,309.29
  6. Step 6: Final answer
    x = 78,674.49

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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.