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Finding the Fourth Proportional to 172,042.79, 258,064.16 and 53,724.24

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Solution

The fourth proportional to 172,042.79, 258,064.16 and 53,724.24 is: 80,586.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,042.79 : 258,064.16 = 53,724.24 : x
  2. Step 2: Convert to fraction form
    172,042.79/258,064.16 = 53,724.24/x
  3. Step 3: Cross multiply
    172,042.79x = 258,064.16 × 53,724.24
  4. Step 4: Simplify right side
    172,042.79x = 13,864,300,598.62
  5. Step 5: Solve for x
    x = 13,864,300,598.62/172,042.79
  6. Step 6: Final answer
    x = 80,586.35

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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.