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Finding the Fourth Proportional to 172,587.60, 258,892.64 and 54,263.52

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Solution

The fourth proportional to 172,587.60, 258,892.64 and 54,263.52 is: 81,398.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,587.60 : 258,892.64 = 54,263.52 : x
  2. Step 2: Convert to fraction form
    172,587.60/258,892.64 = 54,263.52/x
  3. Step 3: Cross multiply
    172,587.60x = 258,892.64 × 54,263.52
  4. Step 4: Simplify right side
    172,587.60x = 14,048,425,948.49
  5. Step 5: Solve for x
    x = 14,048,425,948.49/172,587.60
  6. Step 6: Final answer
    x = 81,398.81

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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.