Home / 172,447.47-258,710.12-52,515.15

Finding the Fourth Proportional to 172,447.47, 258,710.12 and 52,515.15

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Solution

The fourth proportional to 172,447.47, 258,710.12 and 52,515.15 is: 78,784.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,447.47 : 258,710.12 = 52,515.15 : x
  2. Step 2: Convert to fraction form
    172,447.47/258,710.12 = 52,515.15/x
  3. Step 3: Cross multiply
    172,447.47x = 258,710.12 × 52,515.15
  4. Step 4: Simplify right side
    172,447.47x = 13,586,200,495.74
  5. Step 5: Solve for x
    x = 13,586,200,495.74/172,447.47
  6. Step 6: Final answer
    x = 78,784.57

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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.