Home / 49,991.10-69,005.08-28,778.82

Finding the Fourth Proportional to 49,991.10, 69,005.08 and 28,778.82

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Solution

The fourth proportional to 49,991.10, 69,005.08 and 28,778.82 is: 39,724.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,991.10 : 69,005.08 = 28,778.82 : x
  2. Step 2: Convert to fraction form
    49,991.10/69,005.08 = 28,778.82/x
  3. Step 3: Cross multiply
    49,991.10x = 69,005.08 × 28,778.82
  4. Step 4: Simplify right side
    49,991.10x = 1,985,884,776.41
  5. Step 5: Solve for x
    x = 1,985,884,776.41/49,991.10
  6. Step 6: Final answer
    x = 39,724.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.