Home / 90,943.95-125,508.93-55,135.47

Finding the Fourth Proportional to 90,943.95, 125,508.93 and 55,135.47

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Solution

The fourth proportional to 90,943.95, 125,508.93 and 55,135.47 is: 76,090.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,943.95 : 125,508.93 = 55,135.47 : x
  2. Step 2: Convert to fraction form
    90,943.95/125,508.93 = 55,135.47/x
  3. Step 3: Cross multiply
    90,943.95x = 125,508.93 × 55,135.47
  4. Step 4: Simplify right side
    90,943.95x = 6,919,993,844.75
  5. Step 5: Solve for x
    x = 6,919,993,844.75/90,943.95
  6. Step 6: Final answer
    x = 76,090.76

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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.