Home / 91,904.36-126,830.22-51,618.20

Finding the Fourth Proportional to 91,904.36, 126,830.22 and 51,618.20

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Solution

The fourth proportional to 91,904.36, 126,830.22 and 51,618.20 is: 71,234.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,904.36 : 126,830.22 = 51,618.20 : x
  2. Step 2: Convert to fraction form
    91,904.36/126,830.22 = 51,618.20/x
  3. Step 3: Cross multiply
    91,904.36x = 126,830.22 × 51,618.20
  4. Step 4: Simplify right side
    91,904.36x = 6,546,747,662.00
  5. Step 5: Solve for x
    x = 6,546,747,662.00/91,904.36
  6. Step 6: Final answer
    x = 71,234.35

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1.5x scale

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.