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Finding the Fourth Proportional to 172,404.04, 258,606.36 and 54,084.71

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Solution

The fourth proportional to 172,404.04, 258,606.36 and 54,084.71 is: 81,127.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,404.04 : 258,606.36 = 54,084.71 : x
  2. Step 2: Convert to fraction form
    172,404.04/258,606.36 = 54,084.71/x
  3. Step 3: Cross multiply
    172,404.04x = 258,606.36 × 54,084.71
  4. Step 4: Simplify right side
    172,404.04x = 13,986,649,984.76
  5. Step 5: Solve for x
    x = 13,986,649,984.76/172,404.04
  6. Step 6: Final answer
    x = 81,127.16

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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.