Home / 57,110.40-78,812.28-31,960.08

Finding the Fourth Proportional to 57,110.40, 78,812.28 and 31,960.08

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Solution

The fourth proportional to 57,110.40, 78,812.28 and 31,960.08 is: 44,104.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,110.40 : 78,812.28 = 31,960.08 : x
  2. Step 2: Convert to fraction form
    57,110.40/78,812.28 = 31,960.08/x
  3. Step 3: Cross multiply
    57,110.40x = 78,812.28 × 31,960.08
  4. Step 4: Simplify right side
    57,110.40x = 2,518,846,773.78
  5. Step 5: Solve for x
    x = 2,518,846,773.78/57,110.40
  6. Step 6: Final answer
    x = 44,104.87

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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.