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Finding the Fourth Proportional to 39,790.80, 59,713.80 and 29,950.80

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Solution

The fourth proportional to 39,790.80, 59,713.80 and 29,950.80 is: 44,946.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,790.80 : 59,713.80 = 29,950.80 : x
  2. Step 2: Convert to fraction form
    39,790.80/59,713.80 = 29,950.80/x
  3. Step 3: Cross multiply
    39,790.80x = 59,713.80 × 29,950.80
  4. Step 4: Simplify right side
    39,790.80x = 1,788,476,081.04
  5. Step 5: Solve for x
    x = 1,788,476,081.04/39,790.80
  6. Step 6: Final answer
    x = 44,946.97

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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.