Home / 57,059.20-78,741.22-31,908.70

Finding the Fourth Proportional to 57,059.20, 78,741.22 and 31,908.70

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Solution

The fourth proportional to 57,059.20, 78,741.22 and 31,908.70 is: 44,033.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,059.20 : 78,741.22 = 31,908.70 : x
  2. Step 2: Convert to fraction form
    57,059.20/78,741.22 = 31,908.70/x
  3. Step 3: Cross multiply
    57,059.20x = 78,741.22 × 31,908.70
  4. Step 4: Simplify right side
    57,059.20x = 2,512,529,966.61
  5. Step 5: Solve for x
    x = 2,512,529,966.61/57,059.20
  6. Step 6: Final answer
    x = 44,033.74

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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.