Home / 53,528.31-80,209.05-20,230.20

Finding the Fourth Proportional to 53,528.31, 80,209.05 and 20,230.20

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Solution

The fourth proportional to 53,528.31, 80,209.05 and 20,230.20 is: 30,313.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,528.31 : 80,209.05 = 20,230.20 : x
  2. Step 2: Convert to fraction form
    53,528.31/80,209.05 = 20,230.20/x
  3. Step 3: Cross multiply
    53,528.31x = 80,209.05 × 20,230.20
  4. Step 4: Simplify right side
    53,528.31x = 1,622,645,123.31
  5. Step 5: Solve for x
    x = 1,622,645,123.31/53,528.31
  6. Step 6: Final answer
    x = 30,313.77

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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.