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Finding the Fourth Proportional to 64,883.59, 97,316.97 and 20,514.82

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Solution

The fourth proportional to 64,883.59, 97,316.97 and 20,514.82 is: 30,769.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,883.59 : 97,316.97 = 20,514.82 : x
  2. Step 2: Convert to fraction form
    64,883.59/97,316.97 = 20,514.82/x
  3. Step 3: Cross multiply
    64,883.59x = 97,316.97 × 20,514.82
  4. Step 4: Simplify right side
    64,883.59x = 1,996,440,122.50
  5. Step 5: Solve for x
    x = 1,996,440,122.50/64,883.59
  6. Step 6: Final answer
    x = 30,769.57

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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.