Home / 56,479.20-84,621.60-36,747.60

Finding the Fourth Proportional to 56,479.20, 84,621.60 and 36,747.60

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Solution

The fourth proportional to 56,479.20, 84,621.60 and 36,747.60 is: 55,058.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,479.20 : 84,621.60 = 36,747.60 : x
  2. Step 2: Convert to fraction form
    56,479.20/84,621.60 = 36,747.60/x
  3. Step 3: Cross multiply
    56,479.20x = 84,621.60 × 36,747.60
  4. Step 4: Simplify right side
    56,479.20x = 3,109,640,708.16
  5. Step 5: Solve for x
    x = 3,109,640,708.16/56,479.20
  6. Step 6: Final answer
    x = 55,058.16

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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.