Home / 81,717.10-112,768.92-45,906.35

Finding the Fourth Proportional to 81,717.10, 112,768.92 and 45,906.35

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Solution

The fourth proportional to 81,717.10, 112,768.92 and 45,906.35 is: 63,350.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,717.10 : 112,768.92 = 45,906.35 : x
  2. Step 2: Convert to fraction form
    81,717.10/112,768.92 = 45,906.35/x
  3. Step 3: Cross multiply
    81,717.10x = 112,768.92 × 45,906.35
  4. Step 4: Simplify right side
    81,717.10x = 5,176,808,946.80
  5. Step 5: Solve for x
    x = 5,176,808,946.80/81,717.10
  6. Step 6: Final answer
    x = 63,350.38

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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.