Home / 57,110.88-78,812.04-31,960.32

Finding the Fourth Proportional to 57,110.88, 78,812.04 and 31,960.32

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Solution

The fourth proportional to 57,110.88, 78,812.04 and 31,960.32 is: 44,104.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,110.88 : 78,812.04 = 31,960.32 : x
  2. Step 2: Convert to fraction form
    57,110.88/78,812.04 = 31,960.32/x
  3. Step 3: Cross multiply
    57,110.88x = 78,812.04 × 31,960.32
  4. Step 4: Simplify right side
    57,110.88x = 2,518,858,018.25
  5. Step 5: Solve for x
    x = 2,518,858,018.25/57,110.88
  6. Step 6: Final answer
    x = 44,104.70

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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.