Home / 52,720.40-79,080.60-21,548.36

Finding the Fourth Proportional to 52,720.40, 79,080.60 and 21,548.36

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Solution

The fourth proportional to 52,720.40, 79,080.60 and 21,548.36 is: 32,322.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,720.40 : 79,080.60 = 21,548.36 : x
  2. Step 2: Convert to fraction form
    52,720.40/79,080.60 = 21,548.36/x
  3. Step 3: Cross multiply
    52,720.40x = 79,080.60 × 21,548.36
  4. Step 4: Simplify right side
    52,720.40x = 1,704,057,237.82
  5. Step 5: Solve for x
    x = 1,704,057,237.82/52,720.40
  6. Step 6: Final answer
    x = 32,322.54

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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.