Home / 57,928.56-79,980.12-39,058.80

Finding the Fourth Proportional to 57,928.56, 79,980.12 and 39,058.80

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Solution

The fourth proportional to 57,928.56, 79,980.12 and 39,058.80 is: 53,927.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,928.56 : 79,980.12 = 39,058.80 : x
  2. Step 2: Convert to fraction form
    57,928.56/79,980.12 = 39,058.80/x
  3. Step 3: Cross multiply
    57,928.56x = 79,980.12 × 39,058.80
  4. Step 4: Simplify right side
    57,928.56x = 3,123,927,511.06
  5. Step 5: Solve for x
    x = 3,123,927,511.06/57,928.56
  6. Step 6: Final answer
    x = 53,927.24

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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.