Home / 57,311.52-79,088.61-31,816.38

Finding the Fourth Proportional to 57,311.52, 79,088.61 and 31,816.38

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Solution

The fourth proportional to 57,311.52, 79,088.61 and 31,816.38 is: 43,905.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,311.52 : 79,088.61 = 31,816.38 : x
  2. Step 2: Convert to fraction form
    57,311.52/79,088.61 = 31,816.38/x
  3. Step 3: Cross multiply
    57,311.52x = 79,088.61 × 31,816.38
  4. Step 4: Simplify right side
    57,311.52x = 2,516,313,269.43
  5. Step 5: Solve for x
    x = 2,516,313,269.43/57,311.52
  6. Step 6: Final answer
    x = 43,905.89

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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.