Home / 57,705.64-86,389.74-52,171.72

Finding the Fourth Proportional to 57,705.64, 86,389.74 and 52,171.72

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Solution

The fourth proportional to 57,705.64, 86,389.74 and 52,171.72 is: 78,105.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,705.64 : 86,389.74 = 52,171.72 : x
  2. Step 2: Convert to fraction form
    57,705.64/86,389.74 = 52,171.72/x
  3. Step 3: Cross multiply
    57,705.64x = 86,389.74 × 52,171.72
  4. Step 4: Simplify right side
    57,705.64x = 4,507,101,326.15
  5. Step 5: Solve for x
    x = 4,507,101,326.15/57,705.64
  6. Step 6: Final answer
    x = 78,105.04

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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.