Home / 81,606.93-112,619.61-45,799.80

Finding the Fourth Proportional to 81,606.93, 112,619.61 and 45,799.80

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Solution

The fourth proportional to 81,606.93, 112,619.61 and 45,799.80 is: 63,204.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,606.93 : 112,619.61 = 45,799.80 : x
  2. Step 2: Convert to fraction form
    81,606.93/112,619.61 = 45,799.80/x
  3. Step 3: Cross multiply
    81,606.93x = 112,619.61 × 45,799.80
  4. Step 4: Simplify right side
    81,606.93x = 5,157,955,614.08
  5. Step 5: Solve for x
    x = 5,157,955,614.08/81,606.93
  6. Step 6: Final answer
    x = 63,204.87

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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.