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Finding the Fourth Proportional to 64,178.48, 96,277.80 and 19,804.88

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Solution

The fourth proportional to 64,178.48, 96,277.80 and 19,804.88 is: 29,710.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,178.48 : 96,277.80 = 19,804.88 : x
  2. Step 2: Convert to fraction form
    64,178.48/96,277.80 = 19,804.88/x
  3. Step 3: Cross multiply
    64,178.48x = 96,277.80 × 19,804.88
  4. Step 4: Simplify right side
    64,178.48x = 1,906,770,275.66
  5. Step 5: Solve for x
    x = 1,906,770,275.66/64,178.48
  6. Step 6: Final answer
    x = 29,710.43

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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.