Home / 65,221.94-97,828.13-20,836.78

Finding the Fourth Proportional to 65,221.94, 97,828.13 and 20,836.78

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Solution

The fourth proportional to 65,221.94, 97,828.13 and 20,836.78 is: 31,253.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,221.94 : 97,828.13 = 20,836.78 : x
  2. Step 2: Convert to fraction form
    65,221.94/97,828.13 = 20,836.78/x
  3. Step 3: Cross multiply
    65,221.94x = 97,828.13 × 20,836.78
  4. Step 4: Simplify right side
    65,221.94x = 2,038,423,222.62
  5. Step 5: Solve for x
    x = 2,038,423,222.62/65,221.94
  6. Step 6: Final answer
    x = 31,253.64

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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.