Home / 84,711.76-116,889.96-54,499.84

Finding the Fourth Proportional to 84,711.76, 116,889.96 and 54,499.84

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Solution

The fourth proportional to 84,711.76, 116,889.96 and 54,499.84 is: 75,201.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,711.76 : 116,889.96 = 54,499.84 : x
  2. Step 2: Convert to fraction form
    84,711.76/116,889.96 = 54,499.84/x
  3. Step 3: Cross multiply
    84,711.76x = 116,889.96 × 54,499.84
  4. Step 4: Simplify right side
    84,711.76x = 6,370,484,117.61
  5. Step 5: Solve for x
    x = 6,370,484,117.61/84,711.76
  6. Step 6: Final answer
    x = 75,201.89

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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.