Home / 77,311.17-106,700.72-43,321.95

Finding the Fourth Proportional to 77,311.17, 106,700.72 and 43,321.95

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Solution

The fourth proportional to 77,311.17, 106,700.72 and 43,321.95 is: 59,790.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,311.17 : 106,700.72 = 43,321.95 : x
  2. Step 2: Convert to fraction form
    77,311.17/106,700.72 = 43,321.95/x
  3. Step 3: Cross multiply
    77,311.17x = 106,700.72 × 43,321.95
  4. Step 4: Simplify right side
    77,311.17x = 4,622,483,040.19
  5. Step 5: Solve for x
    x = 4,622,483,040.19/77,311.17
  6. Step 6: Final answer
    x = 59,790.62

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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.