Home / 57,585.11-86,389.96-20,146.40

Finding the Fourth Proportional to 57,585.11, 86,389.96 and 20,146.40

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Solution

The fourth proportional to 57,585.11, 86,389.96 and 20,146.40 is: 30,223.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,585.11 : 86,389.96 = 20,146.40 : x
  2. Step 2: Convert to fraction form
    57,585.11/86,389.96 = 20,146.40/x
  3. Step 3: Cross multiply
    57,585.11x = 86,389.96 × 20,146.40
  4. Step 4: Simplify right side
    57,585.11x = 1,740,446,690.14
  5. Step 5: Solve for x
    x = 1,740,446,690.14/57,585.11
  6. Step 6: Final answer
    x = 30,223.90

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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.