Home / 66,142.36-91,278.10-35,927.67

Finding the Fourth Proportional to 66,142.36, 91,278.10 and 35,927.67

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Solution

The fourth proportional to 66,142.36, 91,278.10 and 35,927.67 is: 49,581.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,142.36 : 91,278.10 = 35,927.67 : x
  2. Step 2: Convert to fraction form
    66,142.36/91,278.10 = 35,927.67/x
  3. Step 3: Cross multiply
    66,142.36x = 91,278.10 × 35,927.67
  4. Step 4: Simplify right side
    66,142.36x = 3,279,409,455.03
  5. Step 5: Solve for x
    x = 3,279,409,455.03/66,142.36
  6. Step 6: Final answer
    x = 49,581.08

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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.