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Finding the Fourth Proportional to 53,221.20, 79,860.60 and 23,643.60

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Solution

The fourth proportional to 53,221.20, 79,860.60 and 23,643.60 is: 35,478.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,221.20 : 79,860.60 = 23,643.60 : x
  2. Step 2: Convert to fraction form
    53,221.20/79,860.60 = 23,643.60/x
  3. Step 3: Cross multiply
    53,221.20x = 79,860.60 × 23,643.60
  4. Step 4: Simplify right side
    53,221.20x = 1,888,192,082.16
  5. Step 5: Solve for x
    x = 1,888,192,082.16/53,221.20
  6. Step 6: Final answer
    x = 35,478.19

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1.5x scale

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.