Home / 91,905.10-126,861.63-55,608.42

Finding the Fourth Proportional to 91,905.10, 126,861.63 and 55,608.42

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Solution

The fourth proportional to 91,905.10, 126,861.63 and 55,608.42 is: 76,759.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,905.10 : 126,861.63 = 55,608.42 : x
  2. Step 2: Convert to fraction form
    91,905.10/126,861.63 = 55,608.42/x
  3. Step 3: Cross multiply
    91,905.10x = 126,861.63 × 55,608.42
  4. Step 4: Simplify right side
    91,905.10x = 7,054,574,802.92
  5. Step 5: Solve for x
    x = 7,054,574,802.92/91,905.10
  6. Step 6: Final answer
    x = 76,759.34

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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.