Home / 77,474.40-116,196.30-21,300.02

Finding the Fourth Proportional to 77,474.40, 116,196.30 and 21,300.02

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Solution

The fourth proportional to 77,474.40, 116,196.30 and 21,300.02 is: 31,945.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,474.40 : 116,196.30 = 21,300.02 : x
  2. Step 2: Convert to fraction form
    77,474.40/116,196.30 = 21,300.02/x
  3. Step 3: Cross multiply
    77,474.40x = 116,196.30 × 21,300.02
  4. Step 4: Simplify right side
    77,474.40x = 2,474,983,407.43
  5. Step 5: Solve for x
    x = 2,474,983,407.43/77,474.40
  6. Step 6: Final answer
    x = 31,945.82

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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.