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Finding the Fourth Proportional to 64,879.59, 97,310.97 and 20,510.82

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Solution

The fourth proportional to 64,879.59, 97,310.97 and 20,510.82 is: 30,763.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,879.59 : 97,310.97 = 20,510.82 : x
  2. Step 2: Convert to fraction form
    64,879.59/97,310.97 = 20,510.82/x
  3. Step 3: Cross multiply
    64,879.59x = 97,310.97 × 20,510.82
  4. Step 4: Simplify right side
    64,879.59x = 1,995,927,789.70
  5. Step 5: Solve for x
    x = 1,995,927,789.70/64,879.59
  6. Step 6: Final answer
    x = 30,763.57

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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.