Home / 81,933.48-113,044.70-56,446.74

Finding the Fourth Proportional to 81,933.48, 113,044.70 and 56,446.74

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Solution

The fourth proportional to 81,933.48, 113,044.70 and 56,446.74 is: 77,880.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,933.48 : 113,044.70 = 56,446.74 : x
  2. Step 2: Convert to fraction form
    81,933.48/113,044.70 = 56,446.74/x
  3. Step 3: Cross multiply
    81,933.48x = 113,044.70 × 56,446.74
  4. Step 4: Simplify right side
    81,933.48x = 6,381,004,789.28
  5. Step 5: Solve for x
    x = 6,381,004,789.28/81,933.48
  6. Step 6: Final answer
    x = 77,880.31

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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.