Home / 57,157.66-85,740.59-19,717.19

Finding the Fourth Proportional to 57,157.66, 85,740.59 and 19,717.19

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Solution

The fourth proportional to 57,157.66, 85,740.59 and 19,717.19 is: 29,577.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,157.66 : 85,740.59 = 19,717.19 : x
  2. Step 2: Convert to fraction form
    57,157.66/85,740.59 = 19,717.19/x
  3. Step 3: Cross multiply
    57,157.66x = 85,740.59 × 19,717.19
  4. Step 4: Simplify right side
    57,157.66x = 1,690,563,503.74
  5. Step 5: Solve for x
    x = 1,690,563,503.74/57,157.66
  6. Step 6: Final answer
    x = 29,577.20

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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.