Home / 57,110.72-78,813.84-31,960.16

Finding the Fourth Proportional to 57,110.72, 78,813.84 and 31,960.16

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Solution

The fourth proportional to 57,110.72, 78,813.84 and 31,960.16 is: 44,105.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,110.72 : 78,813.84 = 31,960.16 : x
  2. Step 2: Convert to fraction form
    57,110.72/78,813.84 = 31,960.16/x
  3. Step 3: Cross multiply
    57,110.72x = 78,813.84 × 31,960.16
  4. Step 4: Simplify right side
    57,110.72x = 2,518,902,936.61
  5. Step 5: Solve for x
    x = 2,518,902,936.61/57,110.72
  6. Step 6: Final answer
    x = 44,105.61

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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.