Home / 52,715.28-79,072.46-21,528.64

Finding the Fourth Proportional to 52,715.28, 79,072.46 and 21,528.64

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Solution

The fourth proportional to 52,715.28, 79,072.46 and 21,528.64 is: 32,292.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,715.28 : 79,072.46 = 21,528.64 : x
  2. Step 2: Convert to fraction form
    52,715.28/79,072.46 = 21,528.64/x
  3. Step 3: Cross multiply
    52,715.28x = 79,072.46 × 21,528.64
  4. Step 4: Simplify right side
    52,715.28x = 1,702,322,525.25
  5. Step 5: Solve for x
    x = 1,702,322,525.25/52,715.28
  6. Step 6: Final answer
    x = 32,292.77

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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.