Home / 77,016.31-106,278.69-43,018.02

Finding the Fourth Proportional to 77,016.31, 106,278.69 and 43,018.02

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Solution

The fourth proportional to 77,016.31, 106,278.69 and 43,018.02 is: 59,362.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,016.31 : 106,278.69 = 43,018.02 : x
  2. Step 2: Convert to fraction form
    77,016.31/106,278.69 = 43,018.02/x
  3. Step 3: Cross multiply
    77,016.31x = 106,278.69 × 43,018.02
  4. Step 4: Simplify right side
    77,016.31x = 4,571,898,811.99
  5. Step 5: Solve for x
    x = 4,571,898,811.99/77,016.31
  6. Step 6: Final answer
    x = 59,362.74

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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.