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Finding the Fourth Proportional to 64,225.39, 96,347.31 and 19,855.60

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Solution

The fourth proportional to 64,225.39, 96,347.31 and 19,855.60 is: 29,786.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,225.39 : 96,347.31 = 19,855.60 : x
  2. Step 2: Convert to fraction form
    64,225.39/96,347.31 = 19,855.60/x
  3. Step 3: Cross multiply
    64,225.39x = 96,347.31 × 19,855.60
  4. Step 4: Simplify right side
    64,225.39x = 1,913,033,620.11
  5. Step 5: Solve for x
    x = 1,913,033,620.11/64,225.39
  6. Step 6: Final answer
    x = 29,786.25

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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.