Home / 57,209.63-85,810.59-19,770.21

Finding the Fourth Proportional to 57,209.63, 85,810.59 and 19,770.21

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Solution

The fourth proportional to 57,209.63, 85,810.59 and 19,770.21 is: 29,653.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,209.63 : 85,810.59 = 19,770.21 : x
  2. Step 2: Convert to fraction form
    57,209.63/85,810.59 = 19,770.21/x
  3. Step 3: Cross multiply
    57,209.63x = 85,810.59 × 19,770.21
  4. Step 4: Simplify right side
    57,209.63x = 1,696,493,384.52
  5. Step 5: Solve for x
    x = 1,696,493,384.52/57,209.63
  6. Step 6: Final answer
    x = 29,653.99

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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.