Home / 53,431.50-73,764.90-39,997.92

Finding the Fourth Proportional to 53,431.50, 73,764.90 and 39,997.92

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Solution

The fourth proportional to 53,431.50, 73,764.90 and 39,997.92 is: 55,219.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,431.50 : 73,764.90 = 39,997.92 : x
  2. Step 2: Convert to fraction form
    53,431.50/73,764.90 = 39,997.92/x
  3. Step 3: Cross multiply
    53,431.50x = 73,764.90 × 39,997.92
  4. Step 4: Simplify right side
    53,431.50x = 2,950,442,569.01
  5. Step 5: Solve for x
    x = 2,950,442,569.01/53,431.50
  6. Step 6: Final answer
    x = 55,219.16

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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.