Home / 84,239.20-116,376.90-55,236.46

Finding the Fourth Proportional to 84,239.20, 116,376.90 and 55,236.46

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Solution

The fourth proportional to 84,239.20, 116,376.90 and 55,236.46 is: 76,309.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,239.20 : 116,376.90 = 55,236.46 : x
  2. Step 2: Convert to fraction form
    84,239.20/116,376.90 = 55,236.46/x
  3. Step 3: Cross multiply
    84,239.20x = 116,376.90 × 55,236.46
  4. Step 4: Simplify right side
    84,239.20x = 6,428,247,981.77
  5. Step 5: Solve for x
    x = 6,428,247,981.77/84,239.20
  6. Step 6: Final answer
    x = 76,309.46

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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.