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Finding the Fourth Proportional to 73,818.80, 101,869.44 and 40,284.80

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Solution

The fourth proportional to 73,818.80, 101,869.44 and 40,284.80 is: 55,592.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,818.80 : 101,869.44 = 40,284.80 : x
  2. Step 2: Convert to fraction form
    73,818.80/101,869.44 = 40,284.80/x
  3. Step 3: Cross multiply
    73,818.80x = 101,869.44 × 40,284.80
  4. Step 4: Simplify right side
    73,818.80x = 4,103,790,016.51
  5. Step 5: Solve for x
    x = 4,103,790,016.51/73,818.80
  6. Step 6: Final answer
    x = 55,592.75

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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.