Home / 53,282.16-79,923.40-13,839.60

Finding the Fourth Proportional to 53,282.16, 79,923.40 and 13,839.60

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Solution

The fourth proportional to 53,282.16, 79,923.40 and 13,839.60 is: 20,759.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,282.16 : 79,923.40 = 13,839.60 : x
  2. Step 2: Convert to fraction form
    53,282.16/79,923.40 = 13,839.60/x
  3. Step 3: Cross multiply
    53,282.16x = 79,923.40 × 13,839.60
  4. Step 4: Simplify right side
    53,282.16x = 1,106,107,886.64
  5. Step 5: Solve for x
    x = 1,106,107,886.64/53,282.16
  6. Step 6: Final answer
    x = 20,759.44

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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.