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Finding the Fourth Proportional to 72,537.72, 108,807.18 and 19,950.09

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Solution

The fourth proportional to 72,537.72, 108,807.18 and 19,950.09 is: 29,925.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,537.72 : 108,807.18 = 19,950.09 : x
  2. Step 2: Convert to fraction form
    72,537.72/108,807.18 = 19,950.09/x
  3. Step 3: Cross multiply
    72,537.72x = 108,807.18 × 19,950.09
  4. Step 4: Simplify right side
    72,537.72x = 2,170,713,033.65
  5. Step 5: Solve for x
    x = 2,170,713,033.65/72,537.72
  6. Step 6: Final answer
    x = 29,925.30

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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.