Home / 172,445.72-258,707.49-52,513.39

Finding the Fourth Proportional to 172,445.72, 258,707.49 and 52,513.39

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Solution

The fourth proportional to 172,445.72, 258,707.49 and 52,513.39 is: 78,781.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,445.72 : 258,707.49 = 52,513.39 : x
  2. Step 2: Convert to fraction form
    172,445.72/258,707.49 = 52,513.39/x
  3. Step 3: Cross multiply
    172,445.72x = 258,707.49 × 52,513.39
  4. Step 4: Simplify right side
    172,445.72x = 13,585,606,671.52
  5. Step 5: Solve for x
    x = 13,585,606,671.52/172,445.72
  6. Step 6: Final answer
    x = 78,781.93

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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.