Home / 57,117.08-85,654.32-19,666.56

Finding the Fourth Proportional to 57,117.08, 85,654.32 and 19,666.56

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Solution

The fourth proportional to 57,117.08, 85,654.32 and 19,666.56 is: 29,492.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,117.08 : 85,654.32 = 19,666.56 : x
  2. Step 2: Convert to fraction form
    57,117.08/85,654.32 = 19,666.56/x
  3. Step 3: Cross multiply
    57,117.08x = 85,654.32 × 19,666.56
  4. Step 4: Simplify right side
    57,117.08x = 1,684,525,823.54
  5. Step 5: Solve for x
    x = 1,684,525,823.54/57,117.08
  6. Step 6: Final answer
    x = 29,492.51

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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.