Home / 43,321.20-64,972.08-19,925.16

Finding the Fourth Proportional to 43,321.20, 64,972.08 and 19,925.16

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Solution

The fourth proportional to 43,321.20, 64,972.08 and 19,925.16 is: 29,883.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,321.20 : 64,972.08 = 19,925.16 : x
  2. Step 2: Convert to fraction form
    43,321.20/64,972.08 = 19,925.16/x
  3. Step 3: Cross multiply
    43,321.20x = 64,972.08 × 19,925.16
  4. Step 4: Simplify right side
    43,321.20x = 1,294,579,089.53
  5. Step 5: Solve for x
    x = 1,294,579,089.53/43,321.20
  6. Step 6: Final answer
    x = 29,883.27

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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.