Home / 52,781.11-72,837.95-28,907.77

Finding the Fourth Proportional to 52,781.11, 72,837.95 and 28,907.77

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Solution

The fourth proportional to 52,781.11, 72,837.95 and 28,907.77 is: 39,892.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,781.11 : 72,837.95 = 28,907.77 : x
  2. Step 2: Convert to fraction form
    52,781.11/72,837.95 = 28,907.77/x
  3. Step 3: Cross multiply
    52,781.11x = 72,837.95 × 28,907.77
  4. Step 4: Simplify right side
    52,781.11x = 2,105,582,705.87
  5. Step 5: Solve for x
    x = 2,105,582,705.87/52,781.11
  6. Step 6: Final answer
    x = 39,892.73

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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.