Home / 74,208.60-111,033.72-45,646.20

Finding the Fourth Proportional to 74,208.60, 111,033.72 and 45,646.20

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Solution

The fourth proportional to 74,208.60, 111,033.72 and 45,646.20 is: 68,297.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,208.60 : 111,033.72 = 45,646.20 : x
  2. Step 2: Convert to fraction form
    74,208.60/111,033.72 = 45,646.20/x
  3. Step 3: Cross multiply
    74,208.60x = 111,033.72 × 45,646.20
  4. Step 4: Simplify right side
    74,208.60x = 5,068,267,389.86
  5. Step 5: Solve for x
    x = 5,068,267,389.86/74,208.60
  6. Step 6: Final answer
    x = 68,297.57

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.