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Finding the Fourth Proportional to 57,300.70, 79,073.70 and 31,805.56

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Solution

The fourth proportional to 57,300.70, 79,073.70 and 31,805.56 is: 43,890.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,300.70 : 79,073.70 = 31,805.56 : x
  2. Step 2: Convert to fraction form
    57,300.70/79,073.70 = 31,805.56/x
  3. Step 3: Cross multiply
    57,300.70x = 79,073.70 × 31,805.56
  4. Step 4: Simplify right side
    57,300.70x = 2,514,983,309.77
  5. Step 5: Solve for x
    x = 2,514,983,309.77/57,300.70
  6. Step 6: Final answer
    x = 43,890.97

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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.