Home / 51,331.25-70,832.50-28,667.09

Finding the Fourth Proportional to 51,331.25, 70,832.50 and 28,667.09

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Solution

The fourth proportional to 51,331.25, 70,832.50 and 28,667.09 is: 39,558.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,331.25 : 70,832.50 = 28,667.09 : x
  2. Step 2: Convert to fraction form
    51,331.25/70,832.50 = 28,667.09/x
  3. Step 3: Cross multiply
    51,331.25x = 70,832.50 × 28,667.09
  4. Step 4: Simplify right side
    51,331.25x = 2,030,561,652.43
  5. Step 5: Solve for x
    x = 2,030,561,652.43/51,331.25
  6. Step 6: Final answer
    x = 39,558.00

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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.