Home / 57,738.30-86,607.45-28,140.90

Finding the Fourth Proportional to 57,738.30, 86,607.45 and 28,140.90

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Solution

The fourth proportional to 57,738.30, 86,607.45 and 28,140.90 is: 42,211.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,738.30 : 86,607.45 = 28,140.90 : x
  2. Step 2: Convert to fraction form
    57,738.30/86,607.45 = 28,140.90/x
  3. Step 3: Cross multiply
    57,738.30x = 86,607.45 × 28,140.90
  4. Step 4: Simplify right side
    57,738.30x = 2,437,211,589.71
  5. Step 5: Solve for x
    x = 2,437,211,589.71/57,738.30
  6. Step 6: Final answer
    x = 42,211.35

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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.