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Finding the Fourth Proportional to 65,622.69, 98,448.41 and 21,253.94

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Solution

The fourth proportional to 65,622.69, 98,448.41 and 21,253.94 is: 31,885.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,622.69 : 98,448.41 = 21,253.94 : x
  2. Step 2: Convert to fraction form
    65,622.69/98,448.41 = 21,253.94/x
  3. Step 3: Cross multiply
    65,622.69x = 98,448.41 × 21,253.94
  4. Step 4: Simplify right side
    65,622.69x = 2,092,416,000.72
  5. Step 5: Solve for x
    x = 2,092,416,000.72/65,622.69
  6. Step 6: Final answer
    x = 31,885.56

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1.5x scale

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.