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Finding the Fourth Proportional to 64,998.92, 97,498.86 and 20,625.80

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Solution

The fourth proportional to 64,998.92, 97,498.86 and 20,625.80 is: 30,938.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,998.92 : 97,498.86 = 20,625.80 : x
  2. Step 2: Convert to fraction form
    64,998.92/97,498.86 = 20,625.80/x
  3. Step 3: Cross multiply
    64,998.92x = 97,498.86 × 20,625.80
  4. Step 4: Simplify right side
    64,998.92x = 2,010,991,986.59
  5. Step 5: Solve for x
    x = 2,010,991,986.59/64,998.92
  6. Step 6: Final answer
    x = 30,938.85

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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.