Home / 83,907.83-115,733.85-55,218.35

Finding the Fourth Proportional to 83,907.83, 115,733.85 and 55,218.35

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Solution

The fourth proportional to 83,907.83, 115,733.85 and 55,218.35 is: 76,162.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,907.83 : 115,733.85 = 55,218.35 : x
  2. Step 2: Convert to fraction form
    83,907.83/115,733.85 = 55,218.35/x
  3. Step 3: Cross multiply
    83,907.83x = 115,733.85 × 55,218.35
  4. Step 4: Simplify right side
    83,907.83x = 6,390,631,657.48
  5. Step 5: Solve for x
    x = 6,390,631,657.48/83,907.83
  6. Step 6: Final answer
    x = 76,162.52

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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.