Home / 53,187.20-79,683.60-43,272.80

Finding the Fourth Proportional to 53,187.20, 79,683.60 and 43,272.80

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Solution

The fourth proportional to 53,187.20, 79,683.60 and 43,272.80 is: 64,830.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,187.20 : 79,683.60 = 43,272.80 : x
  2. Step 2: Convert to fraction form
    53,187.20/79,683.60 = 43,272.80/x
  3. Step 3: Cross multiply
    53,187.20x = 79,683.60 × 43,272.80
  4. Step 4: Simplify right side
    53,187.20x = 3,448,132,486.08
  5. Step 5: Solve for x
    x = 3,448,132,486.08/53,187.20
  6. Step 6: Final answer
    x = 64,830.12

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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.