Home / 172,586.72-258,880.08-54,268.40

Finding the Fourth Proportional to 172,586.72, 258,880.08 and 54,268.40

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Solution

The fourth proportional to 172,586.72, 258,880.08 and 54,268.40 is: 81,402.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,586.72 : 258,880.08 = 54,268.40 : x
  2. Step 2: Convert to fraction form
    172,586.72/258,880.08 = 54,268.40/x
  3. Step 3: Cross multiply
    172,586.72x = 258,880.08 × 54,268.40
  4. Step 4: Simplify right side
    172,586.72x = 14,049,007,733.47
  5. Step 5: Solve for x
    x = 14,049,007,733.47/172,586.72
  6. Step 6: Final answer
    x = 81,402.60

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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.