Home / 81,709.05-112,746.21-45,892.20

Finding the Fourth Proportional to 81,709.05, 112,746.21 and 45,892.20

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Solution

The fourth proportional to 81,709.05, 112,746.21 and 45,892.20 is: 63,324.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,709.05 : 112,746.21 = 45,892.20 : x
  2. Step 2: Convert to fraction form
    81,709.05/112,746.21 = 45,892.20/x
  3. Step 3: Cross multiply
    81,709.05x = 112,746.21 × 45,892.20
  4. Step 4: Simplify right side
    81,709.05x = 5,174,171,618.56
  5. Step 5: Solve for x
    x = 5,174,171,618.56/81,709.05
  6. Step 6: Final answer
    x = 63,324.34

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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.