Home / 74,871.64-103,323.22-40,880.82

Finding the Fourth Proportional to 74,871.64, 103,323.22 and 40,880.82

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Solution

The fourth proportional to 74,871.64, 103,323.22 and 40,880.82 is: 56,415.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,871.64 : 103,323.22 = 40,880.82 : x
  2. Step 2: Convert to fraction form
    74,871.64/103,323.22 = 40,880.82/x
  3. Step 3: Cross multiply
    74,871.64x = 103,323.22 × 40,880.82
  4. Step 4: Simplify right side
    74,871.64x = 4,223,937,958.64
  5. Step 5: Solve for x
    x = 4,223,937,958.64/74,871.64
  6. Step 6: Final answer
    x = 56,415.73

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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.