Home / 56,758.08-78,286.32-49,191.12

Finding the Fourth Proportional to 56,758.08, 78,286.32 and 49,191.12

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Solution

The fourth proportional to 56,758.08, 78,286.32 and 49,191.12 is: 67,849.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,758.08 : 78,286.32 = 49,191.12 : x
  2. Step 2: Convert to fraction form
    56,758.08/78,286.32 = 49,191.12/x
  3. Step 3: Cross multiply
    56,758.08x = 78,286.32 × 49,191.12
  4. Step 4: Simplify right side
    56,758.08x = 3,850,991,761.48
  5. Step 5: Solve for x
    x = 3,850,991,761.48/56,758.08
  6. Step 6: Final answer
    x = 67,849.23

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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.