Home / 91,622.30-126,440.19-55,813.82

Finding the Fourth Proportional to 91,622.30, 126,440.19 and 55,813.82

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Solution

The fourth proportional to 91,622.30, 126,440.19 and 55,813.82 is: 77,023.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,622.30 : 126,440.19 = 55,813.82 : x
  2. Step 2: Convert to fraction form
    91,622.30/126,440.19 = 55,813.82/x
  3. Step 3: Cross multiply
    91,622.30x = 126,440.19 × 55,813.82
  4. Step 4: Simplify right side
    91,622.30x = 7,057,110,005.43
  5. Step 5: Solve for x
    x = 7,057,110,005.43/91,622.30
  6. Step 6: Final answer
    x = 77,023.93

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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.