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Finding the Fourth Proportional to 64,299.78, 96,444.90 and 21,605.49

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Solution

The fourth proportional to 64,299.78, 96,444.90 and 21,605.49 is: 32,406.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,299.78 : 96,444.90 = 21,605.49 : x
  2. Step 2: Convert to fraction form
    64,299.78/96,444.90 = 21,605.49/x
  3. Step 3: Cross multiply
    64,299.78x = 96,444.90 × 21,605.49
  4. Step 4: Simplify right side
    64,299.78x = 2,083,739,322.50
  5. Step 5: Solve for x
    x = 2,083,739,322.50/64,299.78
  6. Step 6: Final answer
    x = 32,406.63

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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.