Home / 74,467.60-111,931.80-73,085.20

Finding the Fourth Proportional to 74,467.60, 111,931.80 and 73,085.20

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Solution

The fourth proportional to 74,467.60, 111,931.80 and 73,085.20 is: 109,853.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,467.60 : 111,931.80 = 73,085.20 : x
  2. Step 2: Convert to fraction form
    74,467.60/111,931.80 = 73,085.20/x
  3. Step 3: Cross multiply
    74,467.60x = 111,931.80 × 73,085.20
  4. Step 4: Simplify right side
    74,467.60x = 8,180,557,989.36
  5. Step 5: Solve for x
    x = 8,180,557,989.36/74,467.60
  6. Step 6: Final answer
    x = 109,853.92

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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.