Home / 57,140.81-85,694.67-17,158.18

Finding the Fourth Proportional to 57,140.81, 85,694.67 and 17,158.18

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Solution

The fourth proportional to 57,140.81, 85,694.67 and 17,158.18 is: 25,732.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,140.81 : 85,694.67 = 17,158.18 : x
  2. Step 2: Convert to fraction form
    57,140.81/85,694.67 = 17,158.18/x
  3. Step 3: Cross multiply
    57,140.81x = 85,694.67 × 17,158.18
  4. Step 4: Simplify right side
    57,140.81x = 1,470,364,814.61
  5. Step 5: Solve for x
    x = 1,470,364,814.61/57,140.81
  6. Step 6: Final answer
    x = 25,732.30

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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.