Home / 66,018.15-91,104.66-35,803.17

Finding the Fourth Proportional to 66,018.15, 91,104.66 and 35,803.17

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Solution

The fourth proportional to 66,018.15, 91,104.66 and 35,803.17 is: 49,408.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,018.15 : 91,104.66 = 35,803.17 : x
  2. Step 2: Convert to fraction form
    66,018.15/91,104.66 = 35,803.17/x
  3. Step 3: Cross multiply
    66,018.15x = 91,104.66 × 35,803.17
  4. Step 4: Simplify right side
    66,018.15x = 3,261,835,629.77
  5. Step 5: Solve for x
    x = 3,261,835,629.77/66,018.15
  6. Step 6: Final answer
    x = 49,408.16

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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.