Home / 81,673.68-112,703.28-45,869.04

Finding the Fourth Proportional to 81,673.68, 112,703.28 and 45,869.04

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Solution

The fourth proportional to 81,673.68, 112,703.28 and 45,869.04 is: 63,295.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,673.68 : 112,703.28 = 45,869.04 : x
  2. Step 2: Convert to fraction form
    81,673.68/112,703.28 = 45,869.04/x
  3. Step 3: Cross multiply
    81,673.68x = 112,703.28 × 45,869.04
  4. Step 4: Simplify right side
    81,673.68x = 5,169,591,258.45
  5. Step 5: Solve for x
    x = 5,169,591,258.45/81,673.68
  6. Step 6: Final answer
    x = 63,295.68

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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.