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Finding the Fourth Proportional to 64,618.43, 96,927.64 and 20,248.65

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Solution

The fourth proportional to 64,618.43, 96,927.64 and 20,248.65 is: 30,372.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,618.43 : 96,927.64 = 20,248.65 : x
  2. Step 2: Convert to fraction form
    64,618.43/96,927.64 = 20,248.65/x
  3. Step 3: Cross multiply
    64,618.43x = 96,927.64 × 20,248.65
  4. Step 4: Simplify right side
    64,618.43x = 1,962,653,807.06
  5. Step 5: Solve for x
    x = 1,962,653,807.06/64,618.43
  6. Step 6: Final answer
    x = 30,372.98

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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.