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Finding the Fourth Proportional to 73,824.40, 101,877.64 and 40,290.40

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Solution

The fourth proportional to 73,824.40, 101,877.64 and 40,290.40 is: 55,600.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,824.40 : 101,877.64 = 40,290.40 : x
  2. Step 2: Convert to fraction form
    73,824.40/101,877.64 = 40,290.40/x
  3. Step 3: Cross multiply
    73,824.40x = 101,877.64 × 40,290.40
  4. Step 4: Simplify right side
    73,824.40x = 4,104,690,866.66
  5. Step 5: Solve for x
    x = 4,104,690,866.66/73,824.40
  6. Step 6: Final answer
    x = 55,600.73

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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.