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Finding the Fourth Proportional to 56,042.08, 77,338 and 30,892

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Solution

The fourth proportional to 56,042.08, 77,338 and 30,892 is: 42,630.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,042.08 : 77,338 = 30,892 : x
  2. Step 2: Convert to fraction form
    56,042.08/77,338 = 30,892/x
  3. Step 3: Cross multiply
    56,042.08x = 77,338 × 30,892
  4. Step 4: Simplify right side
    56,042.08x = 2,389,125,496
  5. Step 5: Solve for x
    x = 2,389,125,496/56,042.08
  6. Step 6: Final answer
    x = 42,630.92

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.